Man head-butts, sucker punches police officer as authorities try to stop a fight, cops say.

A Maine police officer responded to a report of a fight between at least five people, but ended up getting “head-butted and sucker-punched," officials said.

Around 4 p.m. on Sept. 19, a call came in about a disturbance in Pittsfield with at least five people fighting and police officer Michael Cray responded, according to authorities.

Once at the scene, Cray talked with 40-year-old Michael J. Antonino, who ended up assaulting the officer by sucker punching him multiple times and head-butting him, police said.

Cray was the only Pittsfield officer on duty, so he called for backup from the Maine State Police, Somerset County Sheriff’s Office and Clinton Police Department, who all responded, officials said.

Cray was treated for minor cuts, authorities said.

Antonino was arrested and charged with assault on a police officer and booked into the Somerset County Jail, police said.

Pittsfield police Chief Pete Bickmore told the Morning Sentinel that his department has dealt with Antonino in the past, but did not provide details of those incidents.