POLICE are investigating two serious crashes, one fatal, in Mandurah last night .
At about 8pm a Ford Falcon sedan was travelling north on Leslie Street, near Blackwood Parade, when the vehicle collided with a wooden pole.
An 18-year-old man, who was a rear passenger in the vehicle, died at the scene.
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READ NOWThe driver, a 37-year-old Hillman man, was located shortly afterwards. Inquiries are continuing.
Two other passengers were taken to Peel Health Campus for minor injuries.
Traffic Enforcement Group officers are investigating a serious motorbike crash on Mandjoogoordap Drive, in Greenfields, at about 7.25pm.
A 49-year-old man was riding a Harley Davidson motorcycle, with a pillion passenger, and was approaching the intersection of Mandurah Road.
Police said it appeared the rider lost control of the motorcycle, and both rider and passenger fell to the road.
The rider was found unconscious and was taken to Peel Health Campus by St John Ambulance. At the time of the crash, it was expected the rider would be transferred to Royal Perth Hospital.
The female passenger received minor injuries.
Anyone with information regarding either crash, or who saw the vehicles prior to the crashes, is asked to call Crime Stoppers on 1800 333 000.