COPLIN PLANTATION — A Massachusetts woman was killed Saturday afternoon when thrown from an all-terrain vehicle in Coplin Plantation, according to the Maine Warden Service.

Abigail Divoll, 25, of Royalston, Massachusetts, was a passenger in a side-by-side ATV driven by Matthew Tolman, 26, of Hubbardston, Massachusetts.

The two were in the lead ATV in a group of three ATVs when Divoll and Tolman’s vehicle hit a washout on the trail and the couple lost control.

Tolman was also thrown from the ATV and suffered a serious head injury, authorities said.

The Maine Warden Service was notified at about 12:45 p.m. of the crash on an ATV trail near Quill Hill Road in Coplin Plantation in Franklin County.

Tolman was flown from the scene in a LifeFlight of Maine helicopter to Maine Medical Center in Portland.

Neither Divoll or Tolman was wearing a helmet, according to rescue workers, who said speed and alcohol might have been factors in the crash.

The crash remained under investigation Sunday.

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