A man has been killed following a crash on Mandurah Road near Kwinana Beach.
The accident happened about 7.30pm on Saturday near Chesterfield Road.
The driver of the crash vehicle was found dead at the scene.
Seven children also in the car at the time were treated for minor injuries.
Ranging in age from three to 14 years, the children have been taken to Rockingham Hospital for further care.
Major Crash officers are at the scene and there is a temporary road closure in place.
Police are asking witnesses to the accident to contact Crime Stoppers on 1800 333 000.
UPDATE, 9.23am Sunday:
Police have released further details of the crash.
The driver who died was a 36-year-old man from Waikiki. The vehicle involved was a 2006 Toyota Landcruiser.