A driver has been injured in a crash involving a car and a truck on the Kwinana Freeway in Wellard.
Police say a Mitsubishi truck and a Toyota Hilux collided northbound just before Mortimer Road around 6.30am on Monday.
It's understood the female driver of the Hilux was trapped in her vehicle.
A St John Ambulance spokesperson has confirmed the woman in her 50s has been conveyed by ambulance to Royal Perth Hospital with non life-threatening injuries.
Traffic remains congested in the area.

Pop-up ice skating rink glides back into Mandurah for winter school holidays
Federal opposition leader Angus Taylor sits down with local business owners in Mandurah
Police search for missing man last seen leaving Rockingham Hospital
West Aussies urged to be on high alert after surge in winter house fires
New $3.4 million boardwalk to be constructed at Lake Clifton thrombolites
City of Mandurah rolls out new tactile bin lids, accessibility stickers to support residents with low vision
Driver dies in hospital after Australind crash
Welfare concerns for woman with dementia last seen in Cooloongup
Charges laid over fatal West Coolup crash
