The Division of Public Safety issued an alert late Monday night after a female student was sexually assaulted Monday morning inside an apartment on the 4000 block of Spruce Street.
Vice President for Public Safety Maureen Rush said police believe the assault was a stranger-rape, but could not immediately provide any more details.
Penn and Philadelphia police have increased patrols and CCTV surveillance in the area of the assault.
Police learned of the rape late Monday afternoon, Rush said, and the Philadelphia Police Special Victims Unit and Penn Police are investigating.
The woman and her roommates are receiving support from the Division of Public Safety's Special Services department.
Rush urged students to be cautious, lock doors and use available safety services.
