Woman Sexually Assaulted At Foo Fighters Wrigley Field Concert

CHICAGO (CBS)--A 23-year-old woman was sexually assaulted by a man Sunday night at Wrigley Field during the first night of a two-day Foo Fighters concert.

Chicago police said the woman was waiting in line to buy food from a vendor when she was groped by the suspect, described by police as a balding man in his 40's or 50's with brown hair.

She left the line and walked into a portable toilet, but he followed her inside before she could lock the door.

He sexually assaulted her inside the port-o-potty, police said.

The assault occurred near Gate R in the ballpark.

The Cubs released a statement Monday afternoon saying the organization was cooperating with police on the ongoing investigation.

"We were notified of an assault of a female guest and immediately contacted Chicago police during last night's event at Wrigley Field," spokesman Julian Green said. "We are using every available resource to help authorities identify and apprehend the suspect and are working with CPD to address the matter quickly. We are encouraging anyone who may have information to please contact police."

She was taken to the hospital after the incident, and police are still searching for the offender.

The Foo Fighters will perform at Wrigley again tonight for their final Chicago show of this tour.