A Hermon man and his young son were killed in a snowmobile accident early this morning.

The Maine Warden Service says the accident happened at around 1 a.m. Sunday. Jason Tracy, 33, of Hermon and his 10-year-old son were killed when the snowmobile they were driving struck a tree on the edge of a field. Tracy's son was wearing a helmet at the time of the crash, but Tracy was not wearing one.

Maine Game Wardens, State Police Troopers, and Penobscot County Deputies worked throughout the night investigating the accident scene.

Warden Lt. Dan Scott cited speed and alcohol as contributing factors to the crash and indicated wardens continue to investigate.