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UK: Manchester attack investigation still at 'full tilt'

Associated Press logo Associated Press 5/28/2017 By JILL LAWLESS, Associated Press
Armed police guard the area during the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira) © The Associated Press Armed police guard the area during the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira)

LONDON (AP) — The hunt is still on for suspects in the Manchester bombing, and members of attacker Salman Abedi's network may still be at large, Britain's interior minister said Sunday.

This is a handout photo taken from CCTV and issued on Saturday, May 27, 2017 by Greater Manchester Police who have altered the surrounding area of Salman Abedi, in an unknown location on the night of the attack on Manchester Arena. The police released surveillance-camera images of the bomber on the night of the May attack as they appealed for information about his final days. (Greater Manchester Police via AP) © The Associated Press This is a handout photo taken from CCTV and issued on Saturday, May 27, 2017 by Greater Manchester Police who have altered the surrounding area of Salman Abedi, in an unknown location on the night of the attack on Manchester Arena. The police released surveillance-camera images of the bomber on the night of the May attack as they appealed for information about his final days. (Greater Manchester Police via AP)

"The operation is still at full tilt," Home Secretary Amber Rudd said. Police say that 1,000 people are working on the investigation, trying to track down bomber Salman Abedi's accomplices and piece together his movements in the days before the attack.

This undated handout photo provided by Cheshire Police shows Elaine McIver, a policewoman who was killed in the blast at the Manchester Arena on Monday, May 22, 2017. The bombing at a Manchester concert on Monday night claimed the lives of more than 20 people, many of them teenagers and their parents. McIver, who served with Cheshire Police, was at the concert with her partner, Paul, who was wounded in the deadly explosion. British media reported that her two children were also there and were also hurt. (Cheshire Police via AP) © The Associated Press This undated handout photo provided by Cheshire Police shows Elaine McIver, a policewoman who was killed in the blast at the Manchester Arena on Monday, May 22, 2017. The bombing at a Manchester concert on Monday night claimed the lives of more than 20 people, many of them teenagers and their parents. McIver, who served with Cheshire Police, was at the concert with her partner, Paul, who was wounded in the deadly explosion. British media reported that her two children were also there and were also hurt. (Cheshire Police via AP)

"Until the operation is complete, we can't be entirely sure that it is closed," Rudd said.

This is a handout photo taken from CCTV and issued on Saturday, May 27, 2017 by Greater Manchester Police who have altered the surrounding area of Salman Abedi, in an unknown location on the night of the attack on Manchester Arena. The police released surveillance-camera images of the bomber on the night of the May attack as they appealed for information about his final days. (Greater Manchester Police via AP) © The Associated Press This is a handout photo taken from CCTV and issued on Saturday, May 27, 2017 by Greater Manchester Police who have altered the surrounding area of Salman Abedi, in an unknown location on the night of the attack on Manchester Arena. The police released surveillance-camera images of the bomber on the night of the May attack as they appealed for information about his final days. (Greater Manchester Police via AP)

Abedi, a 22-year-old Briton of Libyan descent, killed 22 people and himself on May 22 at an Ariana Grande concert. Police have 11 suspects in custody — including Abedi's elder brother Ismail — and have searched properties across the northwest England city. Another brother and Abedi's father have been detained in Libya.

Marathon runners pay respect at flower tributes in St Ann's square, before the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira) © The Associated Press Marathon runners pay respect at flower tributes in St Ann's square, before the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira)

On Saturday, Britain lowered its official terrorism threat level from "critical" to "severe" after police said they had dismantled a large part of Abedi's network.

Marathon runners smile on their way to start line for the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira) © The Associated Press Marathon runners smile on their way to start line for the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira)

Police have released surveillance-camera images of Abedi on the night of the attack and appealed for more information about his final days. They say he returned to Britain from Libya on May 18, and likely completed assembling his bomb at a rented apartment in central Manchester.

Armed police guard the area during the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira) © The Associated Press Armed police guard the area during the Great Manchester Run in Manchester, England Sunday, May 28, 2017. More than 20 people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira)

The images show Abedi in the hours before the attack, wearing sneakers, jeans, a dark jacket and a baseball cap. The straps of a knapsack are visible on his shoulders.

Security remained high at major events across Britain on Sunday, including the Great Manchester Run road race, where police armed with submachine guns protected participants and spectators.

The government is facing criticism after acknowledging that Abedi was on security services' radar, but wasn't a major focus of investigation.

Rudd said Sunday that intelligence agencies were monitoring 3,000 suspected extremists and had a wider pool of 20,000 people of interest.

"I would not rush to conclusions ... that they have somehow missed something," Rudd said.

The family of one victim, 18-year-old Georgina Callander, said her life had been cut short by "evil, evil men prepared to ruin lives and destroy families."

"I wish I could say that Georgina is one of the last to die in this way but unless our government opens its eyes we know we are only another in a long line of parents on a list that continues to grow," the family said in a statement released through Greater Manchester Police.

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