An inmate died after an apparent assault last month at Bullock Correctional Facility, the Alabama Department of Corrections confirmed this week.
The reported death comes as the Justice Department argues a lawsuit should not be dismissed against the state prison system.
Edwin Brazil, 40, died June 22 at a hospital from injuries sustained in an apparent assault by a fellow inmate on June 13, the prison system confirmed. Brazil was serving a 35-year sentence for first-degree robbery.
No charges have been announced in the death, but prison spokeswoman Kristi Simpson it is under investigation.
The fatality followed a spate of deaths in May where three inmates were killed in one week in separate incidents at three different prisons.
The Justice Department last year sued Alabama over conditions in the state prisons, saying the system was failing to protect male inmates from violence involving other prisoners and excessive force by prison staff.