Two NYPD officers are reportedly under investigation after an incident in which they punched and pistol-whipped an unarmed Brooklyn teen. Now, a video has emerged showing the severity of the brutality against Kahreem Tribble in the early hours of Aug. 29.

In the security-camera footage, obtained by community-news outlet DNAinfo New York, Tribble is seen running away from two police officers at 2:16 a.m. in the Bedford-Stuyvesant area of Brooklyn.

He then stops and turns toward police. One officer throws a punch, which Tribble dodges, before putting his hands in the air, and taking several steps away from the officer. Another policeman appears, and initially points a gun at Tribble, before hitting him with it. The first officer then punches Tribble while he is on the ground. He punches the teen one final time before appearing to handcuff him.

See also: NYC Mayor Promises Investigation Into Man Who Died From Apparent Police Chokehold

Although the incident dates back to Aug. 29, video of the violent confrontation was first made public Tuesday. Court documents obtained by DNAinfo New York name the policemen involved as officers Tyrane Isaac (who takes a swing at Tribble) and David Afanador (who appears with the gun). Afanador has been suspended without pay, while Isaac had his badge and gun stripped, and was placed on modified duty, DNAinfo reported.

Three officers, including Isaac and Afanador, spotted the teen standing near a parked van, before approaching him. At that point, Tribble allegedly tossed away a small black canvas bag, and took off running.

Tribble's lawyer Amy Rameau said he is traumatized by the incident.

“My client is a kid, he's 16 years old, and was going home when the cops decided to chase him for no reason," she told Mashable.

Tribble sustained multiple injuries, including several broken teeth, and was refused medical treatment until after he was processed by police, according to Rameau. "They refused to take him to the hospital,” she said. “They lodged false charges against him, and the bulk of those charges have already been dismissed.”

Isaac and Afanador are reportedly under criminal investigation by the NYPD Internal Affairs Bureau and Brooklyn District Attorney Ken Thompson following the incident.

Rameau described an "epidemic" use of force by the NYPD, and called the violence an ongoing problem. "This has to be dealt with by the city mayor and police commissioner," she said. "I wont be satisfied until I see a criminal prosecution of this case."

The incident is the latest high-profile police brutality case to rock the NYPD in recent months. In July, 43-year-old Staten Island man Eric Garner died after being placed in a chokehold by police. Video of the incident sparked widespread protests, and a his death was later ruled a homicide by the New York Medical Examiner; an investigation is currently underway.

Kim Y. Royster, a spokesperson for the NYPD, told Mashable in an email that "the matter is under internal review."

The Brooklyn D.A.'s office did not immediately respond to a request for information on the case.