Federal prosecutors said they’ve busted a Maryland prison gang, charging four corrections officers and 20 gang members with conspiring to sell drugs inside prisons and on the streets of Baltimore.

According to the indictment unsealed Thursday, the four guards helped the members of the Black Guerrilla Family smuggle cell phones, drugs and even seafood into eight Maryland corrections facilities. The leadership of the gang, which has established itself in prisons across the country, called themselves the “Supreme Bush,” court documents said.