A woman was shoved to her death in front of a moving train at Times Square station Monday afternoon, authorities said.

The 49-year-old victim was standing on the platform waiting for the 1 train when a 30-year-old woman wearing a pink shirt and scarf shoved her onto the tracks around 1:20 p.m., authorities said.

She was struck by an oncoming train and died at the scene, police said. The suspect, who has a history of bipolar disorder and schizophrenia, was taken into custody, according to police.

The women were seen arguing on the train platform before the deadly push, cops said.

The suspect looked “proud” after she shoved the victim onto the tracks, according to an MTA worker.

“About 5 minutes ago 20 police officers escorted her out…Her head was up — kinda proud of what she did,” the MTA worker said.

He added, “When I first arrived the train was out of service. And the NYPD and FDNY were evacuating people from the 2 train.”

Police were reviewing surveillance footage of the fatal push, Manhattan Chief of Detectives William Aubry said at a press conference.

Click for more from The New York Post.