A violent assault on the subway left one New Yorker with a fractured spine and has spurred a homophobic hate crime investigation.

On November 30 around 5:10pm, a 20-year-old woman was riding a Manhattan-bound E train when she got into an argument with a man. The man used a homophobic slur during their argument, reports ABC News 7—and as the woman walked away from the man, he punched her in the back of the head and shoved her to the ground.

A portion of the incident was caught on camera and shared by the NYPD on Twitter.

The assailant escaped, and the victim, who was unnamed by police, was taken to a hospital and treated for a fractured spine.

The NYPD's Hate Crime Task Force is still investigating the incident. In the meantime, anyone with information about the attack—including help identifying the attacker, a man in his 50s or 60s who weighs roughly 220 lbs and stands almost 6 feet tall—is asked to contact police.

This is far from the first instance of homophobic violence in New York's subway system: Last May, a similar anti-gay attack on a lesbian couple on a Brooklyn-bound Q train left one of the women concussed. And in 2016, a gay man riding a D train in the Bronx had his nose broken after an assailant called him a "faggot" and punched him in the face.