A 36-year-old man is in critical condition after being shot during an altercation on a Brooklyn subway train. The incident occurred on Thursday afternoon, sparking temporary delays on the northbound A and C trains.

According to the New York Police Department, the altercation began when a 32-year-old man boarded the northbound A train at the Nostrand Avenue Station. The situation escalated when the 36-year-old approached him aggressively. Words were exchanged, leading to a physical confrontation.

During the altercation, the 36-year-old brandished a knife or razor blade before retrieving a firearm from his jacket. Witnesses reported that he began advancing menacingly towards the other man before the struggle intensified.

Amid the scuffle, the 32-year-old managed to wrestle the gun away and fired multiple shots, critically injuring the 36-year-old. The incident took place as the train arrived at the Hoyt-Schermerhorn station, where nearby NYPD officers promptly responded to the gunfire.

The injured man was rushed to New York Presbyterian Brooklyn Methodist Hospital, where he remains in critical condition. Meanwhile, the 32-year-old is being questioned by detectives, although no charges have been filed against him at this time.

Footage captured by witnesses shows subway passengers ducking for cover in the aftermath of the shooting, with one woman heard frantically calling for the NYPD to intervene.

The incident has prompted a swift investigation by authorities, leading to temporary delays in subway service as detectives work to piece together the events that transpired.

For now, the identities of both individuals involved have not been released by the authorities as the investigation continues.