The clashes took place before the Rio de Janeiro state championship game that Flamengo won 2-1. Police eventually brought the violence under control with rubber bullets and tear gas.
"The Municipal Health Secretariat informs that eight men were taken to the Salgado Filho Municipal Hospital as victims of the violence or gunshots in clashes near the Engenhao," the Secretariat said in a statement quoted on the UOL news site and reported by other Brazilian media outlets.
"Of these, one died, four were released and three are still being attended to, one of whom is in a serious condition."
Neither the Secretariat nor local police could be reached for confirmation on Sunday night.
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