A 58-year-old woman who died in front of her daughter was looking for grocery bags in the boot when the car rolled back and fatally struck her.
She had been a passenger in the Mazda CX7, being driven by her 32-year-old daughter, when they pulled over in the Sydney suburb of Castle Hill on Sunday afternoon.
Shortly before 3.30pm they both hopped out of the car not far from the intersection of Excelsior Avenue to check they had reusable grocery bags, according to News Corp.
Police said the daughter believed the car was in park when it began rolling backwards, hitting them both.
The mother was tragically run over and died at the scene while her daughter was taken to Westmead Hospital for mandatory testing.
Officers from The Hills Police Area Command established a crime scene and are investigating the circumstances surrounding the crash.
A report will be prepared for the information of the Coroner.