At least 33 inmates have been killed in an uprising at the largest prison in the northernmost state of Brazil, according to news reports citing local officials. The violence, which occurred overnight in Roraima state, comes just five days after Brazil's deadliest prison massacre in nearly 25 years.That violence last weekend left at least 56 prisoners dead in a penitentiary in Manaus, just south of Roraima in the massive state of Amazonas.Brazilian paper O Estado de Sao Paulo reports that most of the victims of Friday's violence were decapitated, dismembered or had their hearts torn out. The attackers had broken locks and invaded an area where low-risk prisoners were kept, the news service says.The riot at Roraima's Monte Cristo penitentiary was eventually put down by elite police forces. Police officials say there were no escapes.The killings at both prisons appear to be the work of members of Brazil's drug gangs. Members of the First Capital Command, or PCC — Brazil's most powerful gang — were among the dozens killed days ago at the Anisio Jobim Penitentiary in Manaus.The North Family faction, a rival of the PCC, is believed to have led that massacre. "The Family is allied with the Rio de Janeiro-based Red Command drug gang, Brazil's second most powerful faction after the PCC," Reuters reports. Red Command and the Sao Paolo-based PCC are said to be fighting over smuggling routes in the Amazon.The news service has more on the feud between Brazil's two major gangs:
