GREENWICH, N.Y. — Authorities in Washington County are investigating a fatal crash involving a snowmobile in the town of Greenwich early Sunday morning.

The Washington County Sheriff's Office responded to Lowber Road around 1:30 a.m. Sunday to the report of a snowmobile crash on a private property.

Deputies say they located a snowmobile that had crashed into a tree and one victim, 30-year-old Brandon Brown, was ejected from the vehicle and pronounced dead at the scene.

Authorities indicated Brown was not wearing a helmet at the time of the crash, and excessive speed appears to be a preliminary factor into the crash.