Rubber bullets and tear gas was required to break up the indicent, which saw a total of eight people hospitalised
At least one supporter has died following violent clashes prior to a Rio de Janeiro state championship match between Flamengo and Botafogo.
Before the fixture, which Flamengo won 2-1, violence erupted in the streets around the Engenhao stadium, which was used for athletics during the 2016 Olympics.
Police were required to use rubber bullets and tear gas to bring the mob under control, but there was one fatality.
“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.
“Of these, one died, four were released and three are still being attended to, one of whom is in a serious condition.”