A man was arrested following an ATV crash in Sebago early Sunday morning that severely injured his passenger, authorities said.

Matthew Brill, 18, of Bridgton was ejected from the rear of the ATV when the operator, Taale Thompson, 20, of Naples was unable to control a left turn and flipped the vehicle on its side shortly before 1 a.m., according to a news release from the Cumberland County Sheriff’s Office.

Sheriff’s deputies responded along with Sebago Fire/Rescue and applied a tourniquet and pressure dressings to help control severe bleeding from Brill’s arm, the news release said.

Thompson was charged with felony OUI, and the incident is still under investigation, according to the sheriff’s office.