One man was killed Saturday in a single-vehicle crash in Lebanon.

Public Safety spokesman Steve McCausland says the accident happened early Saturday morning on the Emery Mills Road. 28-year-old Brian Leclair was alone in the vehicle when it left the roadway, overturned, and slammed into a tree. The car came to rest on its side.

State Troopers say speed and heavy fog were factors in the accident. Leclair was wearing his seatbelt and died of head injuries. The crash was reported at around 1:30 Saturday morning and took place near the intersection of Bakers Grant Road.