An 18-year-old man is fighting for life in hospital after a serious crash in Cooloongup.
Police say a yellow MG hatchback and the teenager's motorbike collided on Murchison Road about 1pm on Tuesday, November 19.
The rider was rushed to Royal Perth Hospital with critical injuries.
It is understood the driver of the MG was not injured.
Major Crash investigators are appealing for any witnesses to contact Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au.
All reports can be made anonymously.
Dash-cam or mobile phone vision relating to this crash can uploaded directly to investigators via this link: https://wapf.au.evidence.com/.../seriouscrashcooloongup
LISTEN: WA Police release triple-0 call from shooting murder of bikie boss Nick Martin at Kwinana Motorplex
Police pursuit comes to crashing end in East Rockingham
Tensions boil over in Rockingham council chambers as motion to reinstate weekly red bin collections is defeated
WA's first public National War & Service Animal Day commemoration to be held at Dawesville War Memorial
New road safety laws to be named in memory of Furnissdale hit-and-run victim
UK nuclear submarine docks at Rockingham's HMAS Stirling
Rockingham Police ask for public's help to find copper cable thieves
Woman dies in Bunbury motorcycle crash
International chef Diana Chan announced as Mandurah Crab Fest culinary ambassador