A no-holds-barred New Year’s brawl between a man and woman erupted aboard a Bronx 6 train, the latest mayhem on a Big Apple subway, disturbing footage posted online shows.

The one-minute-long footage posted to Twitter on Thursday shows a bearded man in gray jeans and a caramel-colored jacket punching and kicking a woman dressed in black, and dragging her out by the hair onto the train platform.

The woman fights back, booting him and punching him in the face.

“Oh My God this is f–ked” one straphanger says as the video begins.

Straphangers look on without intervening — one man even moves out of their way.

As the fight escalates, another man asks the two to get off the train, “Yo step out man,” while another rider is heard saying “Happy New Year.”

After dragging the woman out by the hair onto the platform, the man kicks her in the chest as she is folded over in pain, the footage shows.

Police said the fight took place on Wednesday at around 7 a.m. at the Elder Avenue station. But when officers responded to a 911 call at the station, both the man and woman insisted that they had a yelling match–and nothing more, according to an NYPD spokesperson.

“Both parties were interviewed separately and each adamantly stated they had a verbal dispute and that it was resolved,” the spokeswoman said in a statement. Neither party claimed to be injured.

After the video came to police attention, police opened an investigation, which is still ongoing, the spokesperson continued.

The NYPD’s Sergeants Benevolent Association retweeted the video, calling out Rep. Alexandria Ocasio-Cortez’s rejection of the state’s plan to hire 500 new police officers to patrol the subways.

“Congresswoman Ocasio-Cortez doesn’t think the Governor should add 500 more MTA police officers to make the subways safer. Watch & you decide as a woman is assaulted, thrown to the ground and kicked. This is a NYC subway.”

The video’s release comes shortly after another chaotic subway brawl in Harlem was posted online.

The MTA referred the latest incident to the NYPD.