Police said a group of "pimply faced" offenders attacked a Red Line rider last week who was trying to get one of them to stop vandalizing the train car.

The 26-year-old victim, who lives in Logan Square, told police that he was aboard the Red Line around 11:15 p.m. Jan. 25, heading toward its Belmont Avenue stop. In his car was a group of about 10 men between the ages of 18 and 21 years old who were drinking beer, the report said. "(The) victim said one of the offenders started to scratch a symbol onto the train car window," the report said. "(The) victim told the offender to stop ... words were exchanged between the offender and victim during which time multiple offenders walked up and started punching the victim (on) his face and head."

Get more local stories like this delivered right to your inbox or smartphone with our free newsletter. Fast signup here. The victim said members of the group also hit him in the head using Miller High Life beer bottles. He got off the train at the Belmont Avenue stop along with the suspects.

"The offenders fled in an unknown direction," the report said. "Victim was unable to give much description of the offenders besides them having pimply faces." The victim suffered minor injuries and was treated at the scene for cuts, scrapes and abrasions, police said. Officers were unable to immediately locate the suspects.