An argument on a public bus quickly ended with a punch to the face that left the victim stunned.
An online video shows the confrontation Monday that took place on a bus on Philadelphia's SEPTA public transit system a spokesman for the agency confirmed to the Daily News.
The video starts with passengers obviously displeased with a man in a red jacket though it's unclear what any disagreement was about.
A suspect in a tan sweatshirt then approaches from behind and towers over the man in red.
After a quick verbal confrontation the aggressor delivers a quick right hand to the victim's face causing him to fall back down to his seat. He is then assaulted several more times before the assailant backs away.
"I'm the wrong one," he tells the victim between profanities. "Say something, say something."
The victim sits in shock with his hands on his face and doesn't answer as the suspect walks away.
But the driver stopped the bus and ordered him to get off as the video ends.
The SEPTA spokesman said the agency is still investigating the incident and there have been no arrests or charges filed. They are still trying to determine the route the bus was traveling.