Police in South Carolina were responding to an incident in a prison housing unit at the McCormick Correctional Institution on Wednesday evening, The Post and Courier reported.
The facility is about 80 miles west of Columbia. McCormick County Emergency Services said the situation had been contained as of about 6:30 p.m. local time, according to message posted on its Facebook page.
The agency earlier reported that some prisoners were “trying to escape.” It now says there have been no escapees.
The South Carolina Department of Corrections confirmed that it was “actively responding” to an incident at the prison and said “all staff are safe and accounted for.”
It was not immediately clear what events led to the incident.