Authorities said the man committed sexual assault on the Broad Street Line SEPTA concourse around 8 a.m. on Thursday, Oct. 20.
The suspect is described as a 5-foot-8 black man in his early 20s with a thin build, braided hair, and a beard.
He was last seen wearing a blue Nike hoodie, light blue jeans, and white sneakers.
If spotted, residents should call 911.
Anyone with relevant information can leave an anonymous tip by calling or texting 215-686-8477, or by calling the Special Victims Unit at 215-685-3251.
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