SACO — A Massachusetts man has been charged with operating under the influence after the tractor-trailer he was driving rolled on Route 112 this morning.

Zachary Wilhite, 26, of Groveland, Mass., was heading east when the 18-wheeler left the road on an S-curve and rolled onto its side around 1:45 a.m., said Sgt. Bruce Cote. The tractor-trailer, filled with bottled Poland Spring water, went off the road near the intersection of Whitten Drive.

Wilhite suffered minor injuries, Cote said. No one else was involved in the accident.

The road was closed for about an hour, from roughly 7 to 8 a.m., after the wrecker service arrived, Cote said.