PLYMOUTH — Police say a Plymouth man has died after being the vehicle he was working on fell on him.

A spokesman for the Penobscot County Sheriff’s Department says 57-year-old Roger Crocker was working under a jacked-up vehicle in his own driveway at about 5 p.m. Wednesday when it rolled off the jack and pinned him underneath.

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Officers say Crocker was unresponsive when they arrived and was pronounced dead at the scene.

Police say the vehicle’s wheels had not been chocked.

The death remains under investigation.