Perth Muslim family targeted in hate crime

A northern suburbs Perth Muslim family has been shaken after their car was spray-painted with racist and hateful messages overnight.

The family told Nine News Perth they woke to find their car covered in swastikas and insults.

The car was parked in front of the family's Clarkson home when it was vandalised some time between 2am and 4am on Tuesday morning.

© MARINA NEIL Police are investigating the incident

It wasn't until they woke up to prepare a bottle for their 11 month old son - that they saw the damage.

The incident comes just days after the Christchurch terrorist attack that left 50 people dead.

Victim Mariam Hassan feared for her family's safety but is defiant.

© Nine News Perth The car was covered in insults.

"It's like, do people hate us? It's upsetting," she said.

"The person, you don't know who it is, but they could come back and they could do something worse. They probably wouldn't even be afraid.

"It's like they're trying to scare you and say get out of my country.

© Nine News Perth Mariam Hassan.

"... this is where I was born and I was raised and no one's going to get me out of here."

WA's terrorism threat level is listed as probable.

Premier Mark McGowan said police were continuing to monitor right-wing extremists in WA.

Police are investigating.