One of South Carolina's most dangerous jails was secured early Monday after a "massive casualty incident" involving several inmates in several housing units, officials said.
Lee Correctional Institution was secured around 2:55 a.m. in three housing units, the South Carolina Department of Corrections wrote on Twitter. The incident started around 7:15 p.m. Sunday.
All prison and law enforcement personnel who responded were safe after the incident, wrote the Department of Corrections of South Carolina. The department added that the State Division of Law Enforcement (SLED) was assisting prison officials in their investigation.
Emergency services in several South Carolina counties responded to the "mass casualty incident," Lee County Fire wrote in a tweet. Several local media reported that the local coroner was called to the scene
No further information was immediately available on the incident.
Lee Correctional – located in Bishopville, 55 miles east of Columbia – has had several violent eruptions in the past.
In March, inmates in the prison held an officer hostage after taking control of a dormitory, the State reported. The inmates held the officer for approximately 25 minutes before being ensured by law enforcement.
In February, an inmate was killed by another inmate in a fight.
The Associated Press contributed to this report.  Ryan Gaydos is editor of Fox News. Follow him on Twitter @RyanGaydos .