Police officers are investigating a serious crash in Gosnells early this morning.
About 12:45am a man was seen riding a motorcycle south on Corfield Street, and then turn into Stalker Road.
A short time later, the same motorist came across the motorcycle crashed at the corner of Stalker Road and Terence Street, an intersection which is controlled by a roundabout. It appears the rider may have struck a kerb.
The rider, who was not wearing a helmet or any other protective clothing, received serious injuries in the crash.
The 22-year-old Gosnells man was taken by ambulance to Royal Perth Hospital.
Anyone with information regarding this crash, or who saw the motorcycle involved prior to the crash is asked to call Crime Stoppers on 1800 333 000.