A young man is in a critical condition in Royal Perth Hospital after he was hit by a car in Rockingham last night.
The 17-year-old was seriously injured in the crash on Read Street, near Leghorn Street, about 8.30pm.
He was flown to Perth by the RAC rescue helicopter.
It is believed the man was involved in an unrelated traffic crash, walked across the road and was hit by another car.
A police spokesman said officers were investigating.