CUSHING, Okla. (AP) -- An official says a fourth inmate involved in an attack or fight at an Oklahoma prison has died.
Terri Watkins, a spokeswoman for the Oklahoma Department of Corrections, said Sunday that one of the five injured inmates who were taken to a Cushing hospital after the Saturday afternoon incident died overnight.
She says preliminary reports show that the first three inmates to die were fatally stabbed, but that she doesn't know the nature of the injuries to any of the other inmates, including the one who died overnight.
Three of the injured inmates remained hospitalized Sunday and the fourth has been returned to the Cimarron Correctional Facility.
A spokesman for the company that operates the prison didn't immediately respond to requests for comment.
The inmates' names haven't been released.