NSW woman, 70, critical in crossing crash

A 70-year-old woman is fighting for life after being struck by a vehicle as she tried to cross a western Sydney street.

The woman was hit at 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 woman remains in Liverpool Hospital in a critical condition, while the driver was taken to Fairfield Hospital for mandatory tests.