UPDATE 5.45am: A car involved in an aborted police chase in Perth's northern suburbs earlier this morning has crashed, trapping one person.
Three men are being questioned by police after the smash in Trigg about 4.15am.
Police said the vehicle was involved in a short pursuit with the Toyota Camry thorugh Scarborough but it was "downgraded".
"The vehicle took off from police and was soon out of sight and a pursuit was discontinued. A short time later it was found crashed," police said.
The car rolled, crashed and landed on its roof on West Coast Highway near West Coast Drive.
St John Ambulance and FESA officers attended. The seriously injured 17-year-old driver had to be cut from the wreckage. Two teenage passengers sustained minor injuries.
Road closures in place earlier on West Coast highway, between Pearl Parade and Elliot Road in the Scarborough Trigg area, have now been lifted.
There was also a serious crash in Kelmscott overnight.Just before 9pm, a car hit a wall on Albany Highway, near Ecko Road.
The crash brought down power lines and Western Power were called in to secure the area.A female passenger was taken to Royal Perth Hospital with suspected spinal injuries.
'The West Australian' is a trademark of West Australian Newspapers Limited 2013.
All rights reserved.
Select your state to see news for your area.