(AP) - State police say a trooper fatally shot a suspect during a traffic stop after the man grabbed apolice-issued baton away from the officer and began pounding himwith the weapon.

The altercation Sunday afternoon on the Robert Moses Causeway inWest Islip ended when 42-year-old Steven Barraco diedfrom a single gunshot wound.

The trooper was not identified by name. He was treated at ahospital for head and facial injuries.

The shooting happened after Barraco was stopped for drivingerratically and speeding at over 100 mph.

During a confrontation with the trooper, police say, Barracomanaged to grab the baton. He was shot once in the upper torso. Hetried to flee on foot, but was apprehended by passing motorists,who held him until other troopers arrived.

Newsday: Cops: Trooper who fatally shot driver acted in self-defense