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UK investigates 'network' of alleged Manchester attackers

Associated Press logo Associated Press 5/24/2017 By JILL LAWLESS, MAGGIE MICHAEL and GREGORY KATZ, Associated Press
A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland)

MANCHESTER, England (AP) — British security forces raided an apartment building Wednesday in central Manchester as they investigated a network of people allegedly behind the city's concert bombing. Hundreds of soldiers were sent to secure key sites across the country, including Buckingham Palace and Parliament.

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Mounted police on patrol in central Manchester, England Wednesday May 24, 2017. More than 20 people were killed and dozens injured in an explosion following a Ariana Grande concert at the venue late Monday evening. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point. (AP Photo/Rui Vieira) © The Associated Press Mounted police on patrol in central Manchester, England Wednesday May 24, 2017. More than 20 people were killed and dozens injured in an explosion following a Ariana Grande concert at the venue late Monday evening. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point. (AP Photo/Rui Vieira)

Home Secretary Amber Rudd said the bomber, Salman Abedi, "likely" did not act alone when he killed 22 people and wounded scores at an Ariana Grande concert Monday night in Manchester. She said he had been known to security forces "up to a point."

The English flag of St. George flies at half mast above Manchester Cathedral in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson) © The Associated Press The English flag of St. George flies at half mast above Manchester Cathedral in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson)

Abedi, a 22-year-old British citizen born to Libyan parents who grew up around Manchester, died in the attack.

A woman stands next to flowers offered for the victims of a suicide attack at a concert by Ariana Grande that killed more than 20 people Monday night in central Manchester, Britain, Wednesday, May 24 2017. (AP Photo/Emilio Morenatti) © The Associated Press A woman stands next to flowers offered for the victims of a suicide attack at a concert by Ariana Grande that killed more than 20 people Monday night in central Manchester, Britain, Wednesday, May 24 2017. (AP Photo/Emilio Morenatti)

In Libya, authorities arrested Abedi's father and a younger brother. The anti-terror force that took the brother, 18-year-old Hashim, into custody said the teenager had confessed that both he and his brother were a part of the Islamic State group and that Hashim Abedi had been aware of the details of the attack.

In this photo taken on Tuesday, May 23, 2017 the lights are off at the ancient Colosseum in Rome. Rome turned off the lights of the Colosseum, Trevi Fountain and city Hall Palace to honor the victims of the Manchester bomb attack. (Angelo CarconiANSA via AP) © The Associated Press In this photo taken on Tuesday, May 23, 2017 the lights are off at the ancient Colosseum in Rome. Rome turned off the lights of the Colosseum, Trevi Fountain and city Hall Palace to honor the victims of the Manchester bomb attack. (Angelo CarconiANSA via AP)

The father, Ramadan Abedi, denied his son's involvement in an interview with The Associated Press earlier Wednesday, saying "We don't believe in killing innocents."

In this photo taken on Tuesday, May 23, 2017 the lights are off at the ancient Colosseum in Rome. Rome turned off the lights of the Colosseum, Trevi Fountain and city Hall Palace to honor the victims of the Manchester bomb attack. (Angelo CarconiANSA via AP) © The Associated Press In this photo taken on Tuesday, May 23, 2017 the lights are off at the ancient Colosseum in Rome. Rome turned off the lights of the Colosseum, Trevi Fountain and city Hall Palace to honor the victims of the Manchester bomb attack. (Angelo CarconiANSA via AP)

Another man taken into custody Tuesday in Manchester was identified by Abedi's father as another son, 23-year-old Ismail.

A woman stands by flowers offered for the victims of a suicide attack at a concert by Ariana Grande that killed more than 20 people Monday night in central Manchester, Britain, Wednesday, May 24, 2017. (AP Photo/Emilio Morenatti) © The Associated Press A woman stands by flowers offered for the victims of a suicide attack at a concert by Ariana Grande that killed more than 20 people Monday night in central Manchester, Britain, Wednesday, May 24, 2017. (AP Photo/Emilio Morenatti)

British police, meanwhile, arrested four additional suspects on Wednesday and were assessing a package carried by one of the men, detained in Wigan, a town west of Manchester. Authorities were raiding properties thought to be connected to Abedi. No one has yet been charged in the case and authorities have not identified the suspects.

A woman places flowers at a memorial for the victims of a suicide attack at a concert by Ariana Grande that killed more than 20 people Monday night in central Manchester, Britain, Wednesday, May 24, 2017. (AP Photo/Emilio Morenatti) © The Associated Press A woman places flowers at a memorial for the victims of a suicide attack at a concert by Ariana Grande that killed more than 20 people Monday night in central Manchester, Britain, Wednesday, May 24, 2017. (AP Photo/Emilio Morenatti)

"I think it's very clear this is a network we are investigating," said Chief Constable Ian Hopkins of the Manchester Police, adding that an off-duty police officer was among those killed in the concert attack.

Newspapers reporting about the suicide attack at a concert by Ariana Grande that killed more than 20 people as it ended Monday night are placed in central Manchester, Britain, Wednesday, May 24, 2017. (AP Photo/Emilio Morenatti) © The Associated Press Newspapers reporting about the suicide attack at a concert by Ariana Grande that killed more than 20 people as it ended Monday night are placed in central Manchester, Britain, Wednesday, May 24, 2017. (AP Photo/Emilio Morenatti)

Many at the concert were young girls and teens enthralled by Grande's pop power — and those who died included an 8-year-old girl.

Armed police keep guard near Victoria Station in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Kirsty Wigglesworth) © The Associated Press Armed police keep guard near Victoria Station in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Kirsty Wigglesworth)

Officials are examining Abedi's trips to Libya and possibly Syria as they piece together his allegiances and try to foil any new potential threats. The government said nearly 1,000 soldiers were deployed Wednesday in high-profile sites in London and elsewhere, replacing police, who can work on counter-terrorism duties.

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People have their bags searched outside St Paul's Cathedral in London, Wednesday May 24, 2017 ahead of a service to mark the one hundredth anniversary of the Order of the British Empire. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press People have their bags searched outside St Paul's Cathedral in London, Wednesday May 24, 2017 ahead of a service to mark the one hundredth anniversary of the Order of the British Empire. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Tim Ireland)

Britain raised its threat level from terrorism to "critical" late Tuesday amid concerns that Abedi may have accomplices who are planning another deadly attack.

Armed police officers patrol outside at St Paul's Cathedral in London, Wednesday May 24, 2017 to mark the one hundredth anniversary of the Order of the British Empire. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press Armed police officers patrol outside at St Paul's Cathedral in London, Wednesday May 24, 2017 to mark the one hundredth anniversary of the Order of the British Empire. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Tim Ireland)

Heavily armed police raided an apartment building in Manchester on Wednesday afternoon, blasting the door open with a controlled explosion. Neighbor Adam Prince said the raided apartment had been used as an Airbnb.

People have their bags searched outside St Paul's Cathedral in London, Wednesday May 24, 2017 ahead of a service to mark the one hundredth anniversary of the Order of the British Empire. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press People have their bags searched outside St Paul's Cathedral in London, Wednesday May 24, 2017 ahead of a service to mark the one hundredth anniversary of the Order of the British Empire. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Tim Ireland)

Muye Li, a 23-year-old student who lives on the same floor, said he thought officers were looking for a woman because they "asked me if I had seen the lady next door."

Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

Across London, troops fanned out and authorities implemented special security plans.

A forensic officer works near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press A forensic officer works near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

The changing of the guard ceremony at Buckingham Palace was canceled Wednesday so police officers can be re-deployed. The traditional ceremony is a major tourist attraction in London.

Tributes are seen outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson) © The Associated Press Tributes are seen outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson)

The Palace of Westminster, which houses the British Parliament in London, was closed Wednesday to all those without passes, and tours and events there were cancelled until further notice. Armed police also patrolled outside St. Paul's Cathedral in London.

A police officer accepts tributes from a man outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson) © The Associated Press A police officer accepts tributes from a man outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson)

"(The goal) is to make our city as hostile an environment as possible for terrorists to plan and operate," said London Police Commander Jane Connors.

Tributes are seen outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson) © The Associated Press Tributes are seen outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson)

The Chelsea soccer team announced it would cancel Sunday's victory parade in London to celebrate the team's Premier League title.

Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Kirsty Wigglesworth) © The Associated Press Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Kirsty Wigglesworth)
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"We are sure our fans will understand this decision," the team said, adding that the parade would have diverted police from the bombing investigation.

Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

Speaking Wednesday from the Libyan city of Tripoli, Abedi's father denied that his son was linked to militants or to the deadly attack. Ramadan Abedi told the AP that when he spoke to his son five days ago, he sounded "normal."

Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

He said his son was getting ready to visit Saudi Arabia for a short Umrah pilgrimage, then planned to head to Libya to spend the Islamic holy month of Ramadan with his family.

Members of the public look at flower tributes in Albert square in central Manchester, England Wednesday May 24, 2017. More than 20 people were killed and dozens injured in an explosion following a Ariana Grande concert at the venue late Monday evening. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point. (AP Photo/Rui Vieira) © The Associated Press Members of the public look at flower tributes in Albert square in central Manchester, England Wednesday May 24, 2017. More than 20 people were killed and dozens injured in an explosion following a Ariana Grande concert at the venue late Monday evening. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point. (AP Photo/Rui Vieira)

"We don't believe in killing innocents. This is not us," the elder Abedi told the AP by telephone. "We aren't the ones who blow up ourselves among innocents. We go to mosques. We recite Quran, but not that."

Mounted police on patrol in central Manchester, England Wednesday May 24, 2017. More than 20 people were killed and dozens injured in an explosion following a Ariana Grande concert at the venue late Monday evening. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point. (AP Photo/Rui Vieira) © The Associated Press Mounted police on patrol in central Manchester, England Wednesday May 24, 2017. More than 20 people were killed and dozens injured in an explosion following a Ariana Grande concert at the venue late Monday evening. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point. (AP Photo/Rui Vieira)

He said his son last visited Libya a month and a half ago and never visited Syria.

Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press Forensic officers work near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

The senior Abedi fled Tripoli in 1993 after Moammar Gadhafi's security authorities issued an arrest warrant for him and eventually sought political asylum in Britain. Now he is a manager for the Central Security force in Tripoli.

Armed police officers patrol a police cordon near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press Armed police officers patrol a police cordon near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

He denied having ties to any of Libya's militant groups, including the Libya Islamic Fighting Group, which was linked to al-Qaida.

Armed police officers patrol a police cordon near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth) © The Associated Press Armed police officers patrol a police cordon near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber.(AP Photo/Kirsty Wigglesworth)

But former Libyan security official Abdel-Basit Haroun told the AP that the elder Abedi was a member of the group in the 1990s. Although it disbanded, Haroun said the father now belongs to the Salafi Jihadi movement, the most extreme sect of Salafism from which al-Qaida and the Islamic State group both hail.

Armed police officers patrol a police cordon near the Manchester Arena in Manchester, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed 22, as new details emerged about the bomber. (AP Photo/Kirsty Wigglesworth): Tributes are seen outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson) © The Associated Press Tributes are seen outside the Manchester Arena in Manchester, England, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Dave Thompson)

In Manchester, where residents continued to place floral tributes to the dead and wounded, police arrested a man at a house near Abedi's home.

A police presence continues in connection to the Monday night explosion at the Manchester Arena at an address in Aston Avenue Greater Manchester England, Wednesday May 24, 2017 . A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday . ( Joe Giddens/PA via AP) © The Associated Press A police presence continues in connection to the Monday night explosion at the Manchester Arena at an address in Aston Avenue Greater Manchester England, Wednesday May 24, 2017 . A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday . ( Joe Giddens/PA via AP)

Omar Alfakhuri, who lives across the street, said he was awakened at 2:30 a.m. by a loud noise and saw police take away the father of the family that lives there in handcuffs. He said the man, in his 40s, is named Adel and has a wife and several children.

Undated handout photo from an unnamed source made available on Wednesday May 24, 2017 of Salman Abedi. British authorities identified Salman Abedi as the bomber who was responsible for Monday's explosion in Manchester which killed more than 20 people. (AP) © The Associated Press Undated handout photo from an unnamed source made available on Wednesday May 24, 2017 of Salman Abedi. British authorities identified Salman Abedi as the bomber who was responsible for Monday's explosion in Manchester which killed more than 20 people. (AP)

"They arrested the father, and I think the rest of the family kind of disappeared," Khuri said, adding that he knew the man from the neighborhood and the mosque. "In the last 15 years, I haven't seen him in trouble at all."

A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland)

At Manchester's Didsbury Mosque, where the Abedi family worshipped, authorities condemned the bombing and denied reports that Abedi had worked there. Azhar Mahmoud, who prays at the mosque in south Manchester, said it was "horrible" that Abedi was associated with it.

A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland)

"Wherever he got that, he didn't get it from this mosque," he said.

A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland)

Mahmoud said the imam regularly preached against radicalization.

A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland) © The Associated Press A member of the army joins police officers in Westminster, London, Wednesday, May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (AP Photo/Tim Ireland)

"He always tells the youngsters, stay away from it. ... I've prayed there Fridays, and that's his message."

A general view of Victoria Railway Station and the Manchester Arena in Manchester, England, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Dave Thompson) © The Associated Press A general view of Victoria Railway Station and the Manchester Arena in Manchester, England, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Dave Thompson)

British Prime Minister Theresa May chaired a meeting Wednesday of her emergency security cabinet group to talk about concerns Abedi might have had outside support. France's interior minister said Abedi is believed to have also traveled to Syria and had "proven" links with the Islamic State group.

Police from the Tactical Aid Unit prepre to enter Granby House apartments in Manchester England, Wednesday May 24, 2017 in connection to Monday's Manchester explosion. A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday night. (AP Photo/Louise Bolotin) © The Associated Press Police from the Tactical Aid Unit prepre to enter Granby House apartments in Manchester England, Wednesday May 24, 2017 in connection to Monday's Manchester explosion. A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday night. (AP Photo/Louise Bolotin)

Rudd said Britain's increased official threat level will remain at "critical" until security services are convinced there is no active plot in place.

Police from the Tactical Aid Unit prepre to enter Granby House apartments in Manchester England, Wednesday May 24, 2017 in connection to Monday's Manchester explosion. A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday night. (AP Photo/Louise Bolotin) © The Associated Press Police from the Tactical Aid Unit prepre to enter Granby House apartments in Manchester England, Wednesday May 24, 2017 in connection to Monday's Manchester explosion. A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday night. (AP Photo/Louise Bolotin)

She also complained about U.S. officials leaking sensitive information about Abedi to the press, saying that could hinder Britain's security services and police.

Police from the Tactical Aid Unit prepre to enter Granby House apartments in Manchester England, Wednesday May 24, 2017 in connection to Monday's Manchester explosion. A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday night. (AP Photo/Louise Bolotin) © The Associated Press Police from the Tactical Aid Unit prepre to enter Granby House apartments in Manchester England, Wednesday May 24, 2017 in connection to Monday's Manchester explosion. A suicide bomber killed more than 20 people leaving a Ariana Grande concert at the Manchester Arena on Monday night. (AP Photo/Louise Bolotin)

"I have been very clear with our friends that that should not happen again," she said.

A man places flowers in Albert Square in Manchester, Britain, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Emilio Morenatti) © The Associated Press A man places flowers in Albert Square in Manchester, Britain, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Emilio Morenatti)

Manchester officials raised to 119 the number of people who sought medical treatment after Monday night's attack, saying 20 of them had critical injuries.

A woman places flowers in Albert Square in Manchester, Britain, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Emilio Morenatti) © The Associated Press A woman places flowers in Albert Square in Manchester, Britain, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Emilio Morenatti)

Jon Rouse of the Greater Manchester Health and Social Care Partnership said 64 people were still hospitalized, many with serious wounds that will require "very long term care and support."

An armed policeman stands alongside a Household Cavalry Guard in Whitehall, central London, Wednesday May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (Photo by Joel Ryan/Invision/AP) © The Associated Press An armed policeman stands alongside a Household Cavalry Guard in Whitehall, central London, Wednesday May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (Photo by Joel Ryan/Invision/AP)

Officials said all the dead and wounded had been identified but their names would not be made public for several days until autopsies are completed.

Mounted police officers patrol past Buckingham Palace in central London, Wednesday May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (Photo by Joel Ryan/Invision/AP) © The Associated Press Mounted police officers patrol past Buckingham Palace in central London, Wednesday May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (Photo by Joel Ryan/Invision/AP)

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Armed police officers stand in Whitehall, central London, Wednesday May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (Photo by Joel Ryan/Invision/AP) © The Associated Press Armed police officers stand in Whitehall, central London, Wednesday May 24, 2017. Britons will find armed troops at vital locations Wednesday after the official threat level was raised to its highest point following a suicide bombing that killed more than 20, as new details emerged about the bomber. (Photo by Joel Ryan/Invision/AP)

Michael reported from Cairo and Katz reported from London. Sylvia Hui and Paisley Dodds in London, Rob Harris in Manchester and Angela Charlton in Paris contributed to this report.

Mounted police officers keep watch as people place flowers in Albert Square in Manchester, Britain, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Emilio Morenatti) © The Associated Press Mounted police officers keep watch as people place flowers in Albert Square in Manchester, Britain, Wednesday, May 24, 2017, after the suicide attack at an Ariana Grande concert that left more than 20 people dead and many more injured, as it ended on Monday night at the Manchester Arena. (AP Photo/Emilio Morenatti)
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