Video shows men trying to throw boy off Muni train for apparently playing loud music

San Francisco Police are investigating a violent incident that occurred on a Muni train Thursday evening. 

Freelance journalist Anna Sterling was the first to post the video which shows two men trying to throw a young man off the Muni train, apparently because he was playing music too loudly.

She wrote, "Whoa these two men just tried to throw this kid off the Muni train because he was playing music too loudly. He easily could’ve hit oncoming traffic. That is not okay.”

In one of the videos, a woman can be heard asking the men to leave the man alone. In the video the man appears to be restraining the other man in a headlock. The woman is heard saying, "He's a kid, leave him alone."  

Police responded and made contact with two men who admitted to being involved in a mutual physical altercation, but neither party wanted to press charges, according to San Francisco Police.

A third person shown in the cellphone video was not located by police. 

As of right now, the names of the men in the video have not been released.  

SFMTA tweeted, "This video is certainly disturbing and passenger safety is our top priority. We are working with @SFPD to investigate the incident."

SFMTA says the operator was aware of the situation and reported it Thursday evening.

Sterling reports the man was OK but "shaken up after the incident." She reports a witness who recorded the video got off at the same stop as the boy to offer help. 

Initially it was reported the victim in this case was a boy, based on witness reports. Police later said the person was a man. 

This is an open investigation.  Anyone with information is asked to call the SFPD Tip Line at (415) 575-4444 or Text a Tip to TIP411 and begin the text message with SFPD.  

At this point, additional details have not been released.