He and his daughter were taking the train home after spending the day at the Bugs Bunny film festival. When they switched onto the outbound Orange Line, a man was blasting lewd music in a crowded car and holding onto a bicycle, he said.

The girl’s father, who asked that his name be withheld to protect his daughter’s privacy, said he is still shaken by the incident.

MBTA Transit Police are looking to identify a man who allegedly made vulgar sexual comments to a 9-year-old girl on the Orange Line Tuesday afternoon and assaulted an adult family member she was with, authorities said.


When the woman sitting next to the man blasting music asked him to turn the music down, he refused, and the two got into a heated argument, the father said. The woman then got off the train at Haymarket Station.

The man then turned the music up even louder and began verbally harassing passengers, the father said.

At one point during the ride, the man made a sexually aggressive comment towards the young girl. In response, other passengers on the train stood up and physically blocked him from getting closer to the girl.

There were two uniformed MBTA officials on the train who said they could not intervene because “their hands were tied,” the father said.

The man shoved him and two other adult passengers, the father said.

The man is believed to have disembarked an outbound train around 4 p.m. at Community College station in Charlestown.

Transit Police released a photo of the man Wednesday morning. He is wanted for questioning on assault allegations and intimidation of a witness, police said.

Police are encouraging the public to call 617-222-1050 with any information that could identify the suspect, or text 873873 to use the anonymous feature on the MBTA See Say app.


Maddie Kilgannon can be reached at maddie.kilgannon@globe.com. Follow her on Twitter @MaddieKilgannon.