CHICAGO (WLS) — Chicago police issued a community alert Thursday after a teenage girl was sexually assaulted by an armed offender while she slept in a residence on the city’s West Side.

The crime happened around 12:45 a.m. Thursday at a home in the 300 block of South Ilpatrick Avenue in West Garfield Park, Chicago police said.

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The 13-year-old female victim was sleeping when she was “awakened by an unknown male groping her while armed with a knife,” the community alert said.

The suspect wanted for aggravated sexual assault fled the scene on a rental bike, police said. He was described as 6ft tall, slim build and clean shaven. The suspect’s age range was not known.

“He was last seen wearing a black hooded sweatshirt, green jacket, black hat, a surgical mask covering his face and a blue rubber glove on his right hand,” the community alert said.

No further information about the crime was immediately available and no arrests have been made.

Anyone with information about the crime was asked to contact Chicago Police District 4 detectives at (312) 746-8251 or submit an anonymous tip to CPDTIP.com and use reference #JH515656.

Chicago police continue to investigate.

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