Police are calling on witnesses to a serious crash in Secret Harbour.
It happened around 11.20pm on Friday, January 7 when a gold Suzuki Jimny driving in an easterly direction along Anstey Road failed to negotiate a right turn on Mandurah Road.
An 18-year-old man, who was a passenger in the vehicle, suffered serious injuries and was taken to Royal Perth Hospital for treatment.
Officers wish to speak to anyone who witnessed the crash or who may have photographs, CCTV or dash camera footage.
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au.
CCTV, Dash camera vision and photographs can be provided to investigators by uploading them via the below link: