Indiana State Police are investigating the death of a 68-year-old Petersburg man.
During a welfare check Tuesday afternoon, Petersburg Police found Tim Gregory dead in his apartment at 6-11 Main Street.
Following an autopsy Thursday afternoon, the Pike County Coroner ruled the manner of death as undetermined.
State Police say this is an on-going investigation.
Anyone with information concerning the investigation is asked to contact the Indiana State Police at 1-800-852-3970.
Callers may remain anonymous.