Chicago police are investigating a reported sexual assault at a residence near the University of Chicago after a 21-year-old woman told officers it happened early Sunday, Oct. 11. Police said the woman reported that she was inside a home in the 5600 block of South University Avenue at about 2 a.m. when a man sexually assaulted her. She went to a nearby hospital for treatment. Authorities have not released further details about the reported assault or identified a suspect. It was not clear whether the residence is connected to a fraternity. Alpha Epsilon Pi’s national headquarters said it learned of the incident Sunday afternoon and was working with chapter leaders. The organization said the chapter is cooperating with University of Chicago administration and local law enforcement, and has been instructed not to hold events or programs while the investigations are pending. Area One detectives were investigating Sunday night.