VIDEO: Vicious biker gang brutally beats, stomps elderly man and son during broad daylight attack in NYC

An unruly group of dirt bikers violently yanked an elderly man and his adult son out of their car in Harlem, New York, on Tuesday, mercilessly beating them before stealing a cellphone, a wallet, and some cash.

What are the details?

According to a report from WABC-TV, the incident took place during broad daylight hours near the intersection of St. Nicholas Terrace and West 127th Street.

Authorities said that the beating occurred after one of the bikers ran a red light and collided with a car, which held a 64-year-old man and his 36-year-old son.

Surveillance video of the attack shows at least four bikers surrounding the father and son's vehicle as two of them yank the driver out of his vehicle and throw him down on the ground. One of the suspects can then be seen kicking the driver while he lay on the ground, and a second suspect later punching him.

The video also showed others surrounding the victims and kicking them while another suspect appeared to ram their bike into one of the victims.

The victims were transported to a nearby hospital for treatment and were said to be in stable condition.

Authorities ask anyone with any information on the attack to call Crime Stoppers at (800) 577-TIPS.

( Content warning: graphic footage):

What else is there to know about this?

The unnamed 36-year-old victim told the New York Post that his elderly father suffered a concussion as a result of the attack.

“I’m OK, I’m just really concerned about him, concerned about my father,” he told the Post. “I want them to find them, and justice. Because it was an accident, all right? What was the point of assaulting an elderly guy? Like 10 people. Anybody’s a man with 10 people.”

He recalled, “The dirt bike came on the opposite side of the downtown, driving opposite traffic. We stopped and we see all these motorcycles coming around the car. My father was driving. He got in a panic. He was scared. He drove a little bit, like to the middle of the block. We were stopped by one motorcycle. That’s when all of them came. That’s when the altercation happened. One guy broke my father’s driver window, the door handle. Opened the door, yanked him out of the car and started beating him. I got assaulted as well.”

The younger man said that he could only think about his father's safety during the attack.

“I’m just concerned about my father,” he recalled. “I went running to his side.”