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PHILADELPHIA (CBS) – Police are searching for a man they say assaulted an autistic man on a SEPTA bus last month.

The incident happened on a Route 48 bus, near the 2000 block of Market Street, around 1 p.m. on Oct. 26.

Police say the suspect and the 34 year-old victim were involved in a verbal altercation. It then turned physical, and the victim was punched several times.

The victim suffered numerous bumps and bruises.

“No one should be attacked like this, but it does show an extra level of intimidation, an extra level of bullying, an extra level of imposing your will on someone else, particularly if he was able to detect that your victim was special needs,” said Philadelphia Police Capt. Sekou Kinebrew.

The suspect is described as a black male, 30 years of age, 5-foot-7, with a thin build and goatee. He was last seen wearing a dark-colored knit hat and dark-colored clothing.

If you have any information on this incident, call police.