An irate subway rider pummeled a man who bumped into him on a Brooklyn train late last month, cops said Wednesday.

A person aged 36 was on a J train heading north at the Kosciuszko Street station in Bushwick at about 1 p.m. on May 21. They accidentally bumped into a stranger, as per the police.

Rather than letting it go, the seething straphanger demanded an apology from the bumper, cops said. 

He then punched the victim multiple times in the face and body and took off, authorities said. 

The victim refused medical attention at the scene for minor injuries. 

The authorities shared video footage of the suspect who is still on the loose. The suspect is described as a man with a medium skin tone and dreadlocks. He was last spotted wearing a gray rain jacket, blue jeans, and white sneakers.

The attack came weeks after another attacker pummeled a stranger in the city’s transit system. 

Aurore Gonzalez, aged 73, was on an E train heading south towards the Fifth Avenue-53rd Street station on May 1 when Marie McWilliams, 36, allegedly assaulted her multiple times. The victim and the police confirmed that the assault left Gonzalez with bruises that are still visible a month later.

McWilliams was arraigned in Manhattan Criminal Court on Tuesday and granted supervised release by Judge Marva Brown, over prosecutors’ request for $10,000 cash bail or $30,000 bond.

Meanwhile, data released Tuesday revealed that crime in the city’s transit system dropped by 5.6% so far this year, as of May 31 – with 186 incidents reported compared to 197 during the same period in 2024.