Hinton, OK - Two prison guards were taken hostage when hundreds of inmates rioted at a federal prison late Sunday evening, according to Fox News.
The riot began as a fight in the prison yard at the Great Plains Correctional Facility, but rapidly grew out of control. Inmates refused to return to their cells, according to Caddo County Sheriff Lennis Miller.
They occupied one building for a short amount of time during the riot, which lasted for about eight hours. Order was restored at the facility on Monday.
Sheriff Miller said that "it was a full-fledged riot", and that some inmates were armed with baseball bats and iron pipes. He estimated the total number of inmates that were involved at about 150, but the prison's manager, GEO Group, Inc., which is based out of Florida, said that as many as 400 inmates participated in the riot.
The disturbance occurred mostly in two recreation areas. Two prison guards, who were not identified, were taken hostage at the beginning of the riot. They were freed during the incident, and were not injured.
Details on how inmates obtained weapons, what started the riot, or how inmates were able to get into the building that they occupied, are not yet known. Three guards were hurt during the riot. The extent of their injuries was not released.
Officers used pepper spray and Tasers to contain the inmates to a on a soccer field and an exercise yard. Some inmates were injured while order was restored to the prison. The extent of their injuries is not known, but they were taken to a local hospital for treatment.
The prison holds about 1,900 inmates. The investigation is being conducted by the Federal Bureau of Prisons and other agencies.