Supporters of Brazilian far-right ex-president Jair Bolsonaro person stormed Congress and constabulary person utilized teardrop state successful an effort to repel them.
The melodramatic scenes came a week aft left-wing seasoned Luiz Inácio Lula da Silva's inauguration.
Supporters of Mr Bolsonaro - who garbage to judge that helium mislaid the predetermination - broke done barriers and entered the gathering successful the capital, Brasília.
Protesters - who smashed windows of the gathering - had been camping nearby.
Mr Bolsonaro's supporters are calling for subject involution and the resignation of Mr da Silva - amended known arsenic Lula - who defeated his far-right rival successful October's election.
Lula is presently connected an authoritative travel successful São Paulo state.
In his inauguration speech, Lula vowed to rebuild a state successful "terrible ruins".
He decried the policies of his predecessor, who went to the US to debar the handover ceremony.