A 37-year-old road worker has undergone surgery at Royal Perth Hospital overnight after being hit by a car in Silver Sands.
It happened just before 9.30pm on Sunday when a Toyota Camry, being driven by a 58-year-old man, crashed into the worker on Mandurah Road near Watersun Drive before ploughing into a street sweeper.
It's understood the driver and his passenger had to be cut from the wreckage.
They were also taken to Royal Perth Hospital for treatment.
The road worker remains in a serious but stable condition.
Police are investigating whether alcohol was a factor in the crash.
Investigators are urging anyone with dash-cam or mobile phone vision of this crash to upload
the vision via this link: https://wapf.au.evidence.com/axon/citizen/public/seriouscrashsilversands
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or to make a report online at crimestopperswa.com.au.
Police issue 31,000 driving infringements in first month of new AI cameras
Works underway on Rockingham and Safety Bay High School redevelopments
New measles exposure sites revealed in Bunbury
Dawesville man charged after allegedly leaving his elderly Great Dane to suffer painful conditions
Good Samaritan sought by police after helping teen during robbery in Baldivis
Under-16s social media ban now in force
Desperate search continues for missing Bunbury FIFO worker
Passengers now able to use credit, debit cards to tag on and off WA's public transport
New floating jetty speeds up emergency response times for Marine Rescue Mandurah