Four inmates were killed by a pair of prisoners in the state's Kirkland Correctional Institution previous year.
Though most of the autopsies have yet to be performed, it appears that numerous prisoners died from stabbing or slashing wounds from "shanks", Lee County Coroner Larry Logan said.
Prisons spokesman Jeff Taillon announced the deaths after state police helped secure Lee Correctional Institution in the early hours of Monday.More news: National Weather Service in Columbia Confirms Tornado Touchdown
The South Carolina Department of Corrections has released the identity of the seven inmates killed following an incident at Lee Correctional, Sunday evening.
He said no officers were wounded.
That overtime initiative was being used at Lee on Sunday night, and extra officers were on hand as inmates were being counted before the violence started.More news: Politicians Respond to Bevin's Remarks on Teacher Protests
"There's nothing here for us to do", the inmate said. The prison capacity is 1,272 according to the SCDC website.
"These folks are fighting over real money and real territory when they are incarcerated", Stirling said.
Reports about the state Department of Correction's progress in this area are issued several times a year as part of 2016 settlement of a yearlong lawsuit involving the treatment of mentally ill prisoners.More news: Man United gift City title with shock loss to West Brom
The inmate, who spoke on the condition of anonymity, says that one of the reasons inmates enter into activities that lead to riots such as this is because inmates aren't given enough to do.