Major crash investigators are piecing together what happened in a school car park that left a 30-year-old pedestrian with serious injuries.
Police said about 3pm Thursday, a Mazda hatchback collided with a pedestrian in the car park of Beehive Montessori School in Mosman Park, west of the city.
She was seriously injured and taken to Royal Perth Hospital.
The driver of the hatchback, a 30-year-old man, has been assisting police with inquiries.
Anyone with information on should contact Crime Stoppers.
Footage from mobile or dash cam can be uploaded to investigators here.
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