Nevada prosecutors say 20 people have been charged in connection with a brawl at a maximum-security prison in eastern Nevada last year in which three inmates were killed and others were injured.

Nevada prosecutors have filed multiple charges against 20 defendants over the incident, including first-degree murder and attempted murder.

Multiple people were killed in a huge brawl at a U.S. prison, resulting in at least 10 people being charged. A huge brawl broke out at a Nevada prison last year. Three inmates were killed in the fight,

The Nevada Attorney General’s office charged 20 defendants in relation to the Ely State Prison incident from last year.