DARBY, Mont. -

A 20-year old man is dead after a vehicle rolled on Old Darby Road, just outside of Darby on Friday night. Highway Patrol Troopers say they got a call about the incident at around midnight. Troopers say alcohol and speed were both factors, and there were also four injured occupants taken to a hospital.

Officials have yet to identify the deceased man, who was pronounced dead at the scene. Troopers say the vehicle failed to negotiate a curve, drove through a fence and rolled.