Authorities said alcohol and speeding were to blame for a Sunday ATV accident in Hartland that seriously injured two people from Massachusetts.

Aaron Cross, a game warden with the Maine Department of Inland Fisheries & Wildlife, listed Doug Surette, 22, and Heather Gould, 20, as driver and passenger respectively on a 4-wheeler that failed to negotiate a curve on Sappi Road in Hartland. The ATV went off the road.

“They missed the turn, drove into the slash and ended up about 40 yards off the trail,” Cross said. “There wasn’t even any skid marks. They just went into the woods.”

Neither Surette nor Gould were wearing helmets, Cross said, adding that driving too fast for conditions and alcohol were factors in the crash.

Surette was taken by LifeFlight air ambulance to Eastern Maine Medical Center in Bangor, and Gould was taken to Sebasticook Valley Hospital in Pittsfield.

Surette was cited for operating under the influence of alcohol.