Police are seeking public assistance into a crash in Maida Vale last week.
The crash occurred at about 12.30am on Monday April 23 on Roe Highway, approximately 500m before Berkshire Road, when a blue Holden Cruze travelling south left the road and crashed into a tree.
The 22-year-old driver received serious injuries and was conveyed to Royal Perth Hospital.
Police would like to speak to anyone that witnessed the crash or saw the vehicle prior to the crash. Anyone with information is asked to call Crime Stoppers on 1800 333 000.