Nine inmates have pleaded guilty in federal court in Natchez to participating in a deadly prison riot in Mississippi in 2012.
One guard was killed and 20 people were injured in the May 20, 2012, riot at the privately run Adams County Correctional Facility in Natchez, which holds immigrants convicted of crimes while being in the U.S. illegally.
The U.S. Attorney's Office says the pleas were entered Tuesday.
Each defendant faces a maximum prison sentence of 10 years and supervised release term of three years. The defendants will be sentenced May 29 and June 12.
Corrections officer Catlin Carithers was killed and 20 people were injured as the riot grew to involve hundreds of inmates.
The riot caused an estimated $1.3 million in damage.