Eleven people were killed in the early hours of Friday in R io de Janeiro, the authorities said, in one of the most violent nights in the recent history of the Brazilian city, according to dpa. The most serious cases happened in the suburban neighbourhood of Engenho Novo, where the police killed six suspects who were travelling in two cars, in a shootout through several streets. The police also found Friday the dead bodies of four people inside a car that had been stolen Sunday in Copacabana and was abandoned Friday outside the slums area of Mare, also in the suburbs of Rio. In a further incident, a militarized police sergeant was shot dead in the suburb of Pilares.