An off-duty police sergeant was allegedly assaulted by a “belligerent” woman during a road rage incident in the days before Christmas, police said.

Randolph woman Vashiyra Mason, 20, was arrested and charged by Stoughton Police after allegedly striking the off-duty cop’s vehicle and assaulting him.

Stoughton police officers responded to the area of 278 Washington St. for a report of a disturbance on Sunday at about 1:06 p.m.

An off-duty Stoughton police sergeant had called the station and reported that he was following a vehicle that side-swiped his car and left the scene.

Mason had allegedly driven into the oncoming traffic lane and around the off-duty officer’s vehicle on Pine Street, and side-swiped the front of his car. Mason later stopped in a parking lot, where the off-duty officer followed her.

“In the parking lot, the off-duty officer identified himself multiple times as a Stoughton Police sergeant in an attempt to de-escalate the situation,” police wrote about the incident. “Mason became belligerent, using slurs and hitting the off-duty officer in the upper body, neck, and face area.”

The off-duty officer then reportedly restrained Mason to prevent her from injuring him or herself.

The passenger of Mason’s car, a 19-year-old Brockton woman, then allegedly hit the off-duty officer in the back of his head and neck. The passenger also began to attack a woman who was with the off-duty officer.

Officers arrived shortly after, and saw Mason hitting the woman who was with the off-duty officer. Mason allegedly grabbed the woman by her hair, and punched her in the back of the head multiple times.

Mason was charged with assault and battery on a police officer, assault and battery, disorderly conduct, and operating a motor vehicle with a suspended license.

Mason’s passenger will be issued a summons to appear in Stoughton District Court on charges of assault and battery on a police officer, assault and battery, and resisting arrest. Because the suspect is being summonsed and the court has not issued a criminal complaint, her identity cannot be released.