A shocking video captured the moment an elderly passenger was pushed off an MBTA bus in Roxbury last week.

Victim injured in bus attack

"That could've been my mother," said MBTA passenger Chris Rudder.

Authorities said the victim landed face-first outside the bus stop and was injured in the attack, which happened near Martin Luther King Boulevard and Warren Street. Paramedics arrived on the scene to provide aid.

MBTA Transit Police said the suspect was identified and taken into custody on Wednesday. The suspect's name has not yet been released.   

While many passengers said the video was disturbing, some noted that incidents like this are not unusual on Boston buses. One rider said he just witnessed a fight on his last bus ride.

"They definitely just fought on the bus, like ... 10 minutes ago. It definitely happens a lot," he said.  

MBTA riders worried about safety    

"It happens all the time, like, especially, like, when you're around here. I can go, like, throughout my life ... how many times I done seen that, where either, like, people acting like that or even, like, people that's on drugs and homeless, like, treating, like, other people like that," Rudder said.

Regular riders like Rudder said they are increasingly concerned about safety and hope the city institutes safety measures.

"We should have, like, undercovers that's hoppin' on the train or bus just to make sure stuff like that is safe, so they can step in and be, like, 'Yo, nah,'" Rudder said.