A man is dead after a single-vehicle accident in Orneville Sunday night.

WABI-TV reports the crash happened at around 7 p.m. on the Lyford Road. The Piscataquis County Sheriff's Office says a vehicle left the roadway and struck some trees. The victim's name has not been released, but officials say he was probably not wearing his seat belt.

Reconstruction teams are now working to determine what caused the vehicle to leave the road. The accident remains under investigation.

We'll update this story as more details become available.