Supporters of former Brazilian President Jair Bolsonaro broke into the country's congressional building, Supreme Court and presidential palace on Sunday, January 8.
Police have since cleared the massive crowds from government buildings and made at least 400 arrests. The breaches come about a week after the inauguration of President Luiz Inácio Lula da Silva, who defeated Bolsonaro in a runoff election on October 30.
Bolsonaro challenged the election results and has not explicitly conceded, though he said he would cooperate with the transition of power.
![Brazilian President Luiz Inácio Lula da Silva walks in the Planalto Palace after it was stormed by supporters of former President Jair Bolsonaro.](https://media.cnn.com/api/v1/images/stellar/prod/230109083657-09-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Brazilian President Luiz Inácio Lula da Silva walks in the Planalto Palace after it was stormed by supporters of former President Jair Bolsonaro.
Eraldo Peres/AP
![Brazilian security forces locked down the area around Congress, the presidential palace and the Supreme Court in the early hours of Monday, January 9.](https://media.cnn.com/api/v1/images/stellar/prod/230109083819-11-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Brazilian security forces locked down the area around Congress, the presidential palace and the Supreme Court in the early hours of Monday, January 9.
Carl de Souza/AFP/Getty Images
![Supporters of former President Jair Bolsonaro are detained during a demonstration at Planalto Palace.](https://media.cnn.com/api/v1/images/stellar/prod/230109083416-05-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro are detained during a demonstration at Planalto Palace.
Ueslei Marcelino/Reuters
![Supporters of former President Jair Bolsonaro supporters clash with security forces as they raid the National Congress in Brasilia](https://media.cnn.com/api/v1/images/stellar/prod/230109102939-19-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro supporters clash with security forces as they raid the National Congress in Brasilia
Mateus Bonomi/Anadolu Agency/Getty Images
![Security forces detain supporters of former President Jair Bolsonaro during a demonstration in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109083443-06-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Security forces detain supporters of former President Jair Bolsonaro during a demonstration in Brasilia.
Ueslei Marcelino/Reuters
![Supporters of former President Jair Bolsonaro are detained by security forces as they raid the National Congress in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109102907-18-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro are detained by security forces as they raid the National Congress in Brasilia.
Mateus Bonomi/Anadolu Agency/Getty Images
![Police confront protesters invading the National Congress in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230108162216-08-bolsonaro-supporters-breach-congress.jpg?q=w_1576,c_fill)
Police confront protesters invading the National Congress in Brasilia.
Andre Borges/EPA/Shutterstock
![Supporters of former President Jair Bolsonaro are pictured through broken glass as they hold a demonstration.](https://media.cnn.com/api/v1/images/stellar/prod/230109083346-04-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro are pictured through broken glass as they hold a demonstration.
Adriano Machado/Reuters
![A supporter of Brazil's former President Jair Bolsonaro holds a flag depicting him during a demonstration against President Luiz Inacio Lula da Silva, in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109103557-21-brazil-violence-gallery.jpg?q=w_1576,c_fill)
A supporter of Brazil's former President Jair Bolsonaro holds a flag depicting him during a demonstration against President Luiz Inacio Lula da Silva, in Brasilia.
Adriano Machado/Reuters
![A supporter of Brazil's former President Jair Bolsonaro is pictured inside Planalto Palace.](https://media.cnn.com/api/v1/images/stellar/prod/230109102832-17-brazil-violence-gallery.jpg?q=w_1576,c_fill)
A supporter of Brazil's former President Jair Bolsonaro is pictured inside Planalto Palace.
Adriano Machado/Reuters
![A man waves Brazil's flag from the window of the National Congress in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230108144401-02-bolsonaro-supporters-breach-congress.jpg?q=w_1576,c_fill)
A man waves Brazil's flag from the window of the National Congress in Brasilia.
Adriano Machado/Reuters
![A supporter of Brazilian former President Jair Bolsonaro is evacuated by fellow supporters after being wounded during clashes with riot police outside the Planalto presidential palace.](https://media.cnn.com/api/v1/images/stellar/prod/230109085425-15-brazil-violence-gallery.jpg?q=w_1576,c_fill)
A supporter of Brazilian former President Jair Bolsonaro is evacuated by fellow supporters after being wounded during clashes with riot police outside the Planalto presidential palace.
Sergio Lima/AFP/Getty Images
![Supporters of former President Jair Bolsonaro stand on the roof of the National Congress building.](https://media.cnn.com/api/v1/images/stellar/prod/230109083625-08-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro stand on the roof of the National Congress building.
Eraldo Peres/AP
![Supporters of former President Jair Bolsonaro demonstrate outside Planalto Palace.](https://media.cnn.com/api/v1/images/stellar/prod/230109083301-03-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro demonstrate outside Planalto Palace.
Ueslei Marcelino/Reuters
![Supporters of former President Jair Bolsonaro storm the the National Congress building in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109083524-07-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro storm the the National Congress building in Brasilia.
Eraldo Peres/AP
![Members of the Federal Legislative Police stand next to a vehicle that crashed into a fountain outside the National Congress in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109085355-14-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Members of the Federal Legislative Police stand next to a vehicle that crashed into a fountain outside the National Congress in Brasilia.
Sergio Lima/AFP/Getty Images
![Supporters of former President Jair Bolsonaro clash with security forces as they break into Planalto Palace and raid the Supreme Court in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109090114-16-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro clash with security forces as they break into Planalto Palace and raid the Supreme Court in Brasilia.
Joedson Alves/Anadolu Agency/Getty Images
![Supporters of former President Jair Bolsonaro demonstrate against President Luiz Inácio Lula da Silva outside the National Congress in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230108154017-05-bolsonaro-supporters-breach-congress.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro demonstrate against President Luiz Inácio Lula da Silva outside the National Congress in Brasilia.
Adriano Machado/Reuters
![Bolsonaro supporters storm the National Congress in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230108162217-09-bolsonaro-supporters-breach-congress.jpg?q=w_1576,c_fill)
Bolsonaro supporters storm the National Congress in Brasilia.
Andre Borges/EPA/Shutterstock
![Supporters of former President Jair Bolsonaro storm the the National Congress building in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230108154328-06-bolsonaro-supporters-breach-congress.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro storm the the National Congress building in Brasilia.
Eraldo Peres/AP
![Supporters of former President Jair Bolsonaro demonstrate against President Luiz Inácio Lula da Silva in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109085320-13-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro demonstrate against President Luiz Inácio Lula da Silva in Brasilia.
Antonio Cascio/Reuters
![Supporters of former President Jair Bolsonaro clash with security forces during a demonstration against President Luiz Inácio Lula da Silva outside Planalto Palace in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109083231-02-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Supporters of former President Jair Bolsonaro clash with security forces during a demonstration against President Luiz Inácio Lula da Silva outside Planalto Palace in Brasilia.
Ueslei Marcelino/Reuters
![Security forces stand guard as supporters of former President Jair Bolsonaro demonstrate outside Planalto Palace in Brasilia.](https://media.cnn.com/api/v1/images/stellar/prod/230109083142-01-brazil-violence-gallery.jpg?q=w_1576,c_fill)
Security forces stand guard as supporters of former President Jair Bolsonaro demonstrate outside Planalto Palace in Brasilia.
Ueslei Marcelino/Reuters