An inmate at Luther Luckett Correctional Complex in LaGrange was assaulted on Wednesday, according to the Kentucky Department of Corrections.
Charles Tackett, 67, was found lying on the floor of his cell at about 9:20 p.m. He is listed in stable condition at University of Louisville Hospital.
Three inmates are under investigation in the assault.
Tackett, from Fayette County, is serving a three-year sentence for possession of matter portraying a sex performance by a minor.