In an epic New York transit meltdown, a passenger came unglued on the No. 6 train in The Bronx, stripped off his clothes and chased people naked through the station — while a transit cop calmly watched the scene unfold.

The wild rant, which was caught on video, starts with the man shouting epithets as he strips down to his boxers on the train in the Hunts Point Avenue station on May 2. The man then suddenly doffs his skivvies and runs naked from the subway car.

Police and other passengers finally enter the fray and subdue the madman.

WARNING: GRAPHIC CONTENT