A girl escaped after an unknown man attacked her on the 1100 block of Clark Street on Tuesday morning, police said.

Police have made no arrests but are working with the girl to identify the alleged attacker, Evanston Police Department Chief Richard Eddington said late Tuesday afternoon. Investigators are treating the attack as an isolated incident.

According to a press release from the EPD, a man grabbed the girl and dragged her into nearby bushes while she was walking to school at 7:45 a.m. The man attempted to remove the girl’s pants, but she fought back and escaped to a relative’s house, the release said.

After responding to the area, police could not find the man, the release said.

The release describes the suspect as a black man between 5 foot 6 inches and 5 foot 8 inches tall and in his early 40s, with brown eyes and a medium build. He has a light-colored mustache and possible bruising under the right eye, and he wore a black baseball cap, a blue and yellow sweater and black gym shoes, according to the release.

Police learned after the incident the girl had previously had casual conversations with the man at the Davis Street train station on the way to school, according to the release.

– KATIE PARK