Police are investigating a serious crash in Orelia.
Police and the RAC rescue helicopter are at the scene of a serious crash in Orelia this afternoon.
The crash occurred near the intersection of Thomas Road and Colchester Drive.
Thomas Road is partially closed between Colchester Avenue and McLaughlin Road.
Motorists are advised to avoid the area or check the Main Roads WA website for updates if you need to travel to the area.
Additional traffic management may be in place due to the pending departure of the RAC rescue helicopter.
No further information has been released, but there are reports firefighters have had to cut a person free from the wreck.