CUMBERLAND — A 19-year-old Cumberland man died Monday when he fell off the all-terrain vehicle he was riding and the machine landed on top of him, police said.

Jesse P. Zacks, of Mill Road, was riding on Pleasant Valley Road at 5 p.m. when he suddenly vaulted over the front of the machine, which then landed on him, Police Chief Joseph Charon said. Residents pulled the machine off him and Zacks was taken by LifeFlight helicopter to Maine Medical Center but died en route.

It was not clear whether he was riding on the road for some distance or if he had gotten off one trail and was connecting to another, Charon said.

Zacks was not wearing a helmet, though that was not a significant factor in his fatal injuries, Charon said. He would not be specific about those injuries, however.

The Cumberland County Sheriff’s Office is conducting an accident reconstruction.

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