OXFORD — A man was injured Friday afternoon when his motorcycle went off Route 121 in Welchville village and landed in a brook, Oxford Police Chief Michael Ward said.

The man’s identity was not immediately available.

“What we do know at this point is that the man was driving around a corner on Mechanic Falls Road around 3 p.m. when he swerved to avoid traffic,” Ward said. “There was a school bus and a line of cars, and when he swerved, he went off the road and into a brook.”

The man was flown by LifeFlight air ambulance to Central Maine Medical Center in Lewiston.

Oxford Fire and Rescue closed a section of the road for more than an hour to allow medical personnel to care for the man and for police to investigate.