Interim police Supt. Terry Hillard expressed "extreme outrage and disappointment" last week over allegations that two officers sexually assaulted a young woman.
Nearly a half-dozen women have come forward about sexual assault allegations involving two police officers.
The accusations follow the two officers being "relieved of their police powers" last week after a 22-year-old woman claimed they sexually assaulted her.
A third officer, who works with the men, also was relieved of police powers in connection to the allegations. The Sun-Times' Michael Sneed reports that police are interviewing at least four of the women, and a source said the department is taking the case "very seriously."
A forensic investigation is under way and results are pending. News of the results -- and possible charges against the officers -- could come by the end of the week, according to the source.
On Wednesday, the 22-year-old woman told police that two uniformed police officers offered her a ride to her Rogers Park apartment. She said she had sex with one of the officers because she felt threatened by their advances.
She later got away and a neighbor, hearing the commotion, told police he saw a naked man running down the hallway and another man, in a police uniform, walking away, according to a police report.
The officers allegedly left part of their uniforms and a cell phone at the woman's apartment.
Police Supt. Terry Hillard expressed "extreme outrage and disappointment" on Thursday over the allegations.