THIS is the shocking moment a gun-wielding biker brutally beat an SUV driver before hurling a concrete block at the man's car window in a vicious road rage attack.
Police confirmed they have a man in custody and formal charges are "imminent" after the violent rampage, which kicked off in South Philadelphia shortly after 6pm on Tuesday evening.
The identity of the "person of interest" has yet to be revealed after cops in the Pennsylvania city brought him in for questioning on Thursday following the horrific outburst.
Footage of the attack shared on Twitter and Instagram shows an SUV driver, who had been traveling behind numerous dirt bikes and quads being confronted, assaulted, and terrorized by one furious biker.
Cops told victim accidentally hit a biker when the ATV group suddenly stopped so he got out to check on the suspect, who "became hostile and demanded payment for the damages.
In the first clip, the enraged biker can be seen beating the driver of the SUV, who is wedged between a car door and his vehicle as two other bike riders look on.
The suspect is apparently handed a gun by someone who isn't in the shot as the woman filming tells him to "chill, chill, chill!"
In another clip, the bike rider picks up bricks and cinder blocks and throws them at the white SUV – including what appears to be a heavy concrete block he needs two hands to pick up – smashing the windows.
During the frightening altercation, a passenger in the back of the SUV driver's car was also injured, while "the complainant reported minor injuries from the assault as well as from the broken glass," cops said.
Cops said the SUV driver reported minor injuries from the assault and from being cut by broken glass.
Police confirmed the investigation is active and ongoing with South Detective Division but did not release the names of the suspect or victims.