The Nebraska Department of Correctional Services reports the cell doors on a 16-cell single-person restrictive housing gallery opened in error shortly before 10 o’clock this morning.
Inmates ignored calls to stay in their cells, came into the gallery, and refused to return to their cells.
One or more inmates assaulted an inmate, seriously injuring him. Another inmate sustained non-serious injuries.
Prison guards used chemical agents in an attempt to clear the gallery and force the inmates back into their cells, but the inmates refused and started a fire in a cell. Inmates complied with orders to return to their cell after the corrections emergency response team was activated.
No staff members suffered injury.
Visits to Tecumseh this afternoon have been cancelled. The prison is running in modified operations. Visiting could resume this evening. Visitors are encouraged to call before arriving at the prison.