Investigators say the Volvo was traveling northbound on Route 135 when the operator lost control, went off the left side of the roadway and struck the guardrail several times before coming to final rest in the middle of Route 135. An 18-year-old passenger, identified by police as Isaak Labor, of Littleton, was ejected out of the rear window of the vehicle and sustained serious injuries. He was taken by EMS to Littleton Regional Hospital and later transferred by medical helicopter to Dartmouth-Hitchcock Medical Center in Lebanon. There was no update on his condition Sunday night. The driver, identified as Dagan Webster, 19, of Dalton, was arrested at the time of the crash for operating after suspension and revocation, misuse of plates, and operating an unregistered motor vehicle.