A five-year-old girl who had just been picked up from school and her baby brother died when they were struck by an SUV.

The children aged 1 and 5 were rushed to hospital after the crash in Sydney’s south-west, but both have since died.

Desperate motorists lifting the SUV onto its side to rescue one of the children trapped underneath. The one- and five-year-old were both killed in south-west Sydney crash.