BRENTWOOD, N.Y. (AP) — State police say a trooper was seriously injured when he was struck by a vehicle while assisting a disabled motorist on an overpass leading to the Long Island Expressway near Brentwood.

State police say 35-year-old Trooper Joseph Gallagher had stopped to help a motorist who had broken down when he was struck by another vehicle. It happened about 2:30 p.m. Monday.