Brazil’s President, Luiz Lula da Silva has vowed to punish supporters of the county’s ex-leader, Jair Bolsonaro, after they stormed Congress.
Supporters of the ousted far-right leader also stormed the Supreme Court and surrounded the Presidential Palace.
But Police regained control of the building in the Capital Brasilia after hours of clashes.
Brasilia’s civil police said three hundred people have been arrested and officials have vowed to track down others involved.
The Justice Minister, Flavio Dino, has said the government is seeking information on terrorist attacks.