CHICAGO (CBS) — Chicago police were hoping surveillance video footage would help them find the man who raped a woman last week after attacking her at a bus stop in the Ukrainian Village neighborhood.

The 31-year-old woman was standing at a CTA bus stop at the corner of Oakley and Chicago around 6:20 a.m. Friday, when a man walked up and punched her in the face.

The suspect then dragged the victim into a gangway across the street, and sexually assaulted her. He also stole her cell phone before fleeing west on Chicago Avenue, police said.

Surveillance video image of a man who punched a woman at a CTA bus stop, then dragged her into a gangway, and sexually assaulted her at Oakley and Chicago on Dec. 1, 2017. (Credit: Chicago Police)

The woman was taken to St. Mary’s Hospital.

Surveillance cameras on the block recorded images of the suspect, who was wearing black and white striped pants, and a black hooded jacket or sweatshirt.

Police asked anyone with information on the sexual assault to call Area Central detectives at 312-747-8380.