Major Crash officers are investigating a fatal crash that occurred on Wednesday nightalong Loton Avenue near Hyde Street in Midland.
Around 7:30pm a black Ford station sedan travelling along Loton Avenue attempted to turn right into a driveway, when a motorcycle travelling in the same direction collided with the rear door of the car.
The motorcyclist, a man in his 40s received life threatening injuries and was taken to Midland Hospital where he later died as a result of his injuries.
The driver of the station sedan, a woman in her 20s, was not injured and is assisting with inquiries.
Investigators would like to speak with anyone who may have seen the crash or have dashcam footage of either vehicle prior to the crash.
Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or report online at crimestopperswa.com.au