An 18-year-old brandished a firearm during an argument in the parking lot outside a South Shore high school prom in Kingston Thursday night, authorities say.

Around 7:15 p.m., a police officer on-site at the Indian Pond Country Club, located at 60 Country Club Way, called for patrol unit assistance after reports of an individual with a gun in the parking lot, according to a statement from the Kingston Police Department.

The South Shore Technical High School prom was being held at the club at the time, according to police. The high school is located in Hanover.

The 18-year-old man, who was not a student but “was known to attendees,” got into an argument with two female students in the parking lot, police said. 

As the confrontation escalated, the man reportedly threatened to run over a student with a car before displaying a black firearm. Police said the man had pointed the weapon toward the sky and appeared to chamber a round.  

The man then fled the scene, police said. 

Although no injuries were reported, the incident prompted an increased police presence at the dance and a law enforcement alert, authorities noted. 

Following witness interviews, police tracked the suspect to his home in Randolph, where he “surrendered peacefully,” according to the police statement. The suspect was taken into custody that night. 

“There is no known public safety risk at this time,” police said. 

Authorities have not released the suspect’s identity. 

The investigation remains active, with detectives pursuing further legal authorization to carry out searches and seizures related to the case, police said.