One inmate at SCI Benner Township was found dead in his cell late Wednesday night.
The superintendent says that 23-year-old Derric Harsh was found unresponsive in his cell just before midnight.
Prison staff providing life-saving support before medical personnel arrived.
Harsh was trasnfered to Mount Nittany Medical Center in State College where he was pronounced dead just after 1:00 a.m. Thursday.
Harsh was serving an 8-16 year sentence for a rape in Lancaster County and has been in SCI Benner since February 2.