MILLERSVILLE, Pa. (AP) — The boyfriend of a student found dead in a central Pennsylvania university dormitory room has been charged with aggravated assault.

Police say 19-year-old Gregorio Orrostieta and 18-year-old Karli Hall were in a physical altercation before her death early Sunday at Millersville University.

Police say they found Hall unresponsive around 5 a.m. while responding to a cardiac arrest call. The cause of death is under investigation. An autopsy is scheduled for Monday.

Hall was a freshman from Chadds Ford, Pennsylvania. Orrostieta, of Kennett Square, Pennsylvania, did not attend the Lancaster County university.

Officials said university counseling staff will be available on campus to talk to students who need assistance.

Orrostieta is being held in lieu of $1.5 million bail and was not available for comment.

A preliminary hearing is scheduled for Feb. 19.