Elderly Sydney woman hit by car critical

A woman is in critical condition after she was struck by a vehicle as she tried to cross a street in west Sydney.

The 70-year-woman was hit at Mount Street in Bonnyrigg Heights on Sunday night, with the driver of the vehicle, a 53-year-old woman, stopping to render first aid before paramedics arrived.

The pedestrian was taken to Liverpool Hospital where she remains in a critical condition while the driver was taken to Fairfield Hospital for mandatory tests.