OAKLAND, Maine — A 55-year-old Belgrade man was taken by LifeFlight of Maine to Eastern Maine Medical Center Saturday afternoon following a motorcycle crash in downtown Oakland.

The motorcyclist, who police declined to name on Sunday, allegedly failed to stop at a stop sign at the intersection of Maine and Water streets and collided with a Honda sport utility vehicle just after 2:30 p.m., according to Oakland police Officer Michael Sayers, the lead investigator of the crash.

Police believe he was thrown from the Harley Davidson motorcycle.

The driver of the SUV, Beverly Quirion, whose address was unavailable, was uninjured. There were no passengers in the car, Sayers said.

The man, who was not wearing a helmet and suffered head injuries, was taken by Delta Ambulance to Inland Hospital in Waterville, and then taken by LifeFlight of Maine to Eastern Maine Medical Center in Bangor. His condition was unavailable Sunday morning.

The intersection was closed for approximately two hours Saturday afternoon while Maine State Police reconstructed the crash.

Sayers said police believe alcohol was a factor in the crash, but declined to say which driver they believe may have been drinking. No charges had been filed as of 10 a.m. Sunday.