In 1993, nine inmates and a corrections officer were killed in the Southern Ohio Correctional Facility, a maximum security prison in Lucasville, Ohio.
After a four day standoff with inmates holding 42 hostages, NY state police moved in to retake the prison on orders of governor Nelson Rockefeller.
No officers were hurt in the violence at three housing units, he said. Nikki Haley in 2013 to lead the state prison agency.
Seven inmates were killed and 17 others were injured in an incident at Lee Correctional Institution in Bishopville, South Carolina, authorities said.
The "mass casualty incident" at the Lee Correctional Institution in Bishopville, South Carolina, erupted around 7:15 p.m. and didn't end until 2:55 this morning, the South Carolina Department of Corrections said in a statement.
Logan said he just finished identifying all the dead Monday and is working to notify relatives.
Lee County Coroner Larry Logan told The Associated Press that he arrived to a chaotic scene of fights everywhere at Lee Correctional Institution.
Lee is a maximum-security prison that houses 1,600 inmates, including some of the state's most violent offenders, reports the State.
An hours-long prison brawl in SC has left seven inmates dead, reports WRDW.