Brazil Assembly: Mass arrests as Lula calls the riots "terrorist"

After supporters of former President Jair Bolsonaro stormed Congress, the presidential palace, and the Supreme Court in the capital, Brazil, about 1,500 people have been detained.

In support of democratic principles, tens of thousands of people are demonstrating in So Paulo, the largest city in Brazil.

According to BBC's Katy Watson in So Paulo, the crowds have filled the area, singing, dancing, and chanting for justice. The turnout is impressive, as a portion of Paulista Avenue, Brazil's most famous street, has been blocked off.

However, there was a significant police presence in case of trouble. Our correspondent adds that the atmosphere has occasionally felt tense.

"Reject the terrorist acts and criminal, coup-mongering vandalism that occurred" during the riots on Sunday, according to the new president, widely referred to as Lula, as well as the heads of Congress and the Supreme Court.

During the dramatic events, thousands of protesters in yellow Brazil football shirts and flags ransacked the center of the Brazilian state and overtook the police.

Lula had to declare emergency powers by force.

One of the many camps of Mr. Bolsonaro's supporters that have been set up outside army barracks across the country since the presidential election was held was dismantled by heavily armed officers on Monday morning in Brazil.