FARMINGTON — A Winslow father and son were hospitalized with nonlife-threatening injuries after an ATV accident.

The Maine Warden Service reported that Brian Dunton, 36, and his 9-year-old son, from Winslow, were riding their Yamaha Grizzly ATV on the Whistle Stop Trail when the machine left the trail and hit a tree. The service said speed was a factor in the crash.

Both father and son were wearing helmets, which helped save them from more serious injuries, according to Warden Kris MacCabe, who attended the scene of the accident.

The two were taken by NorthStar Ambulance to Franklin Memorial Hospital. The Warden Service will examine the ATV for any mechanical issues.

The Whistle Stop Trail is a 15-mile multiuse trail that runs from Jay to Farmington.

No more information was available Saturday.