A toddler has been injured in car roll-over on Kwinana Freeway late on Tuesday night.
The crash happened on the southbound freeway in Atwell just after midnight.
St John Ambulance conveyed the four-year-old boy to Perth Children’s Hospital with minor injuries.
An ambulance spokesperson said the boy was in a booster seat wearing a seat belt when the car flipped.
Police do not believe alcohol was a factor in the crash.