A brave 5-year-old girl has helped save the lives of her brother and sister in a car crash that killed their parents.
She managed to unhook her 1-year-old brother from his car seat - but the children were then stuck in the car for two days in 30C heat.
The family was travelling from Perth to Kondinin 250 kilometres inland and they were just a few minutes from home when their car left the road.
Sian Valance of 7 News reports.
Watch the video.