A sexual assault was reported at a University of Wisconsin residence hall Sunday at 1:30 am.

A Timely Warning was issued to campus about 12 hours after the incident. The UW Police Department are searching for a suspect described as a white male, 18 to 20 years old, 5’10” to 6’0″ tall, with a thin build and shoulder length brown hair.

UWPD spokesperson Marc Lovicott declined to comment on the specific location of the assault as well as whether those involved were UW students.

UWPD is actively investigating the case and anyone with information should call 608-264-COPS.