More than 50 inmates were killed during a prison riot in northern Brazil on Monday.<br />16 of the 52 inmates who died were decapitated in the Altamira prison, in Para state.<br />The rest are believed to have died from asphyxiation due to the prisoners setting fire to part of the facility.<br />CNN reports the incident is the latest deadly violence that has plagued Brazil's prisons in recent months. <br />
