A chaotic scene unfolded last weekend during a festive Christmas celebration on Nantucket Island, Massachusetts, when a mass brawl erupted amidst the holiday cheer.

The incident, which was captured on video, took place on Saturday on Federal Street during the 51st annual Nantucket Christmas Stroll. The Nantucket Police Department confirmed the occurrence to Fox News Digital.

The festive event had drawn a large crowd, with hundreds gathering to witness Santa Claus’s grand arrival in the affluent community.

The Nantucket Police are currently investigating the altercation that disrupted the Christmas celebration on December 6, 2025.

Video evidence shows a diverse group of men, aged between their 20s and 60s, engaged in a heated argument that quickly escalated into physical altercations in the street.

As tensions rose, the participants divided into two separate groups. In one group, two older men were seen pushing and shoving each other.

In another, a younger man is seen pushing another individual. Someone then jumps on the back of the assailant, who is thrown to the ground.

A general view of the shoreline in Nantucket, Massachusetts, Friday, Sept. 27, 2024.  (David McGlynn for Fox News Digital)

A full brawl then breaks out as several people are seen throwing haymakers at one another.

“It was kind of like the Jets and the Sharks from ‘West Side Story,’ only in Ralph Lauren and Burberry,” a witness told KISS108, referring to the two gangs in the musical. “It was 20-somethings versus, like, 60-somethings.”

“It was crazy,” she added. “It was mayhem.”

It was unclear what prompted the street fight.

Officers with the Nantucket Police Department responded to the scene at around 2 p.m., but no arrests have been made.

A view of a marina in Nantucket Island. (iStock)

The investigation is ongoing, the department told Fox News Digital.