WASHINGTON, Mass. (AP) — Police have made an arrest in connection with an early morning shooting at a state park in western Massachusetts that left a man fighting for his life.

The Berkshire district attorney says 19-year-old Kevin Nieves, of Pittsfield, faces charges including armed assault with intent to murder in the shooting at about 1 a.m. Tuesday in October Mountain State Forest in Washington.

The 19-year-old victim was taken to Berkshire Medical Center in Pittsfield where he underwent surgery and was listed in critical condition as of Tuesday. His name wasn't released but police say he's from Cheshire.

Authorities did not disclose s possible motive.

Nieves is scheduled for arraignment Wednesday. It was not immediately clear if he had an attorney.

At 16,500 acres, October Mountain is the largest state forest in Massachusetts.