Six inmates died Monday in a brawl in a high-security prison in Brazil, the authorities said, According to (dpa) . According to the governorship of the north-eastern state of Pernambuco, the fight broke out in the early hours in the Barreto Campelo prison, located on the island of Itamaraca. Two of the inmates were stabbed to death, while the remaining four casualties burnt to death, the official report said. The authorities indicated that the situation was later brought under control by the prison guards.