STATE COLLEGE — Penn State’s president is warning that a history of misconduct could eventually result in the end of fraternities and sororities at the university.

President Eric Barron posted an open letter to the school’s Greek-letter community Monday that asked whether there’s any hope of keeping the system if there’s an unwillingness to recognize the adverse effects of excessive drinking, hazing and sexual assault.

His remarks come as police are investigating the death of sophomore Timothy Piazza, who was fatally injured in a fall in February while attending a pledge acceptance party.