A man has suffered serious injuries after being hit by a vehicle in Perth's east, where he was left on the side of the road for hours.
The 22-year-old was walking along Toodyay Road to a petrol station in Stratton after 11pm on Saturday when he was struck by the unknown vehicle.
He managed to crawl to the side of the road, where a passing motorist found him after 3.20am, and he was taken to Royal Perth Hospital.
Police are urging witnesses to come forward.
© AAP 2019