The parents of a five-year-old girl and baby boy who died when they were struck by an SUV in Cabramatta have spoken about their unimaginable grief.

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.

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