The clash at Pedrinhas penitentiary involved jailed members of two drug-trafficking outfits, the MaranhĂGBP o state government said Thursday.
Police recently arrested 16 reputed members of one of the two gangs, Bonde dos 40, which is seen as the most powerful criminal organisation in the state.
The brawl inside the prison was followed by the burning of eight municipal buses in attacks across the city of SĂGBP o Luis. Police suspect the arson incidents were connected to the conflict at Pedrinhas.
--IANS (Posted on 11-10-2013)