BLACKSBURG, Va. (AP) — Virginia Tech police are investigating a report of a sexual assault that happened inside a campus residence hall.

The Roanoke Times reports police received a report of a sexual assault Saturday that happened sometime during the early morning hours at Lee Hall on Washington Street. The school’s website says the dorm is a co-ed residence hall for about 800 students.

Police say the victim and offender were both Virginia Tech students who were previously acquainted.