The Knoxville Police Department is investigating why two men suffering from gunshot wounds were dropped off at the University of Tennessee Medical Center on Wednesday afternoon.

Both men had non-life-threatening injuries and were not fully cooperative with investigators, according to KPD.

Officers responded to a report of shots fired near Dora Street around 4:42 p.m. Wednesday. Authorities found shell casings, but no one on the scene.

A woman drove the two men to the hospital while authorities processed the scene at Dora Street, according to KPD.

KPD said the woman was also “uncooperative.”

The investigation is ongoing.