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Brazil security forces have detained 1,200 people after supporters of far-right former president Jair Bolsonaro stormed government buildings in Brasília.
Thousands of demonstrators ransacked the Congress building as well as the presidential palace, and Supreme Court on Sunday, reports BBC.
Bolsonaro lost the presidential election to left-wing Luiz Inácio Lula da Silva in October after sowing unsubstantiated claims about voting systems.
Many of his supporters have refused to accept the result and some have been camping outside army buildings around the country calling for a military intervention.
Bolsonaro has denied encouraging Sunday's attack, saying what happened had gone beyond democratic protest.
Meanwhile, world leaders including US President Joe Biden have condemned the riots as an attack on democracy.
Brazilian President Luiz Inacio Lula da Silva declared a state of emergency in the country's capital due to the riots staged on Sunday by supporters of former head of state Jair Bolsonar.
Bd-pratidin English/Golam Rosul
