Police have released the identity of a man who was killed in a motorcycle crash Sunday in Bucksport. There were no witnesses to the accident but a passerby called for help.

WABI-TV reports 41-year-old Nathaniel Coleman was declared dead at the scene of the accident on the Millvale Road. Police say Coleman was not wearing a helmet when his bike skidded across a driveway around 6:30 Sunday night. on a slight curve in the road.

Police are now investigating, to try and determine what caused the bike to leave the roadway.