WASHINGTON, Pa. -- One person was killed in an all-terrain vehicle crash late Saturday night in Washington County.

According to the coroner, the crash happened shortly after 11 p.m. on Devil's Den Road in Hanover Township.

An ATV, operated by David Hook, 47, of Burgettstown, struck a tree.

Hook, who was not wearing a helmet, was pronounced dead at the scene.

The Hanover Township Police Department is investigating the crash.