UPDATE: A woman in her 30s has been taken to Joondalup Health Campus after a car rollover on Wanneroo Road.
A St John Ambulance WA spokeswoman said the woman was in a stable condition.
EARLIER: POLICE, St John Ambulance WA and the Department of Fire and Emergency Services are at the scene of a car rollover in Wanneroo.
The rollover occurred on the northbound lanes of Wanneroo Road near Church Street.
The right-hand lanes have been shut down in both directions.
The call came in at 9.30am and there are reports someone is trapped in the car.
Wanneroo Rd RIGHT LANES BLOCKED both directions at Church St, Wanneroo due to crash #perthtraffic
— Main Roads WA (@Perth_Traffic) May 22, 2018