57 prisoners were killed by other inmates during clashes between organized crime groups in the Altamira prison in northern Brazil Monday with 16 of the victims being decapitated, according to prison officials. Para state prison authorities said a fight erupted around 7 a.m. between the Rio de Janeiro-based Comando Vermelho and a local criminal group known as Comando Classe A. “Leaders of the (Comando Classe A) set fire to a cell belonging to one of the prison’s pavilions, where members of the (Comando Vermelho) were located,” the statement read. State prisons chief Jarbas Vasconcelos said the fire had spread rapidly...