Police are calling for information on a Wundowie crash that resulted in the death of an eight-year-old girl.
Just after midnight yesterday, a gold Toyota Echo being driven by a 30-year-old woman is understood to have veered off the road and hit a tree.
The woman's two children, aged two and eight were trapped in the crash.
The RAC Rescue helicopter attended the scene and airlifted the three to hospital but the eight-year-old girl died on the way.
The mother suffered serious injuries two-year-old was treated for minor injuries.
Police believe that the woman may have swerved to avoid hitting a kangaroo. They are interested in speaking to anyone who saw the crash, was in the area or assisted before emergency services arrived.
Anyone with information is asked to call 1800 333 000.