TONAWANDA, N.Y. — Police say a 10-year-old girl accidentally ran over her mom and killed her as they attempted to dislodge their car from a snowbank in western New York.

The Buffalo News reported Saturday that Thursday’s tragic accident occurred in the town of Tonawanda, near Niagara Falls.

Police said the 48-year-old woman’s daughter was helping to free the vehicle after they got stuck in snow and mud backing out of a driveway.

Investigators say the car was in reverse as the mother rocked the car from an open driver’s-side door and her daughter mistakenly hit the gas pedal.

That’s when they say the mother was hit by the door, fell down and was pinned underneath the car.

A tow truck eventually lifted the vehicle but medics couldn’t revive the mother.