Police resorted to use of tear gas on Sunday as thousands of demonstrators took to streets in Sao Paulo city of Brazil to protest the removal of leftist president Dilma Rousseff last week in an impeachment trial.
Agitators likened Rouseff's overthrow by Michel Temer to a coup. This was the largest wave of demonstration against the new President, the Reuters reported.
Rouseff was ousted on Wednesday following the months-long impeachment trial. Senators voted 61-20 to convict Rousseff for illegal use of money from state banks to boost public spending. Temer, Rousseff's former vice-president, has been leading the country since her suspension and will complete the remainder of her term through 2018.
Carrying anti-Temer banners, protesters made their way down Sao Paulo's central Avenida Paulista, chanting "Out with Temer". The organisers said 50,000 people, including families with children, turned out for the march.
As the rally ended and demonstrators headed for metro entrances, riot police fired tear gas canisters that caused panic and led to clashes. Police justified the crackdown saying they were forced to intervene "to stop vandalism at the end of a peaceful march".
Former senator and candidate for city council, Eduardo Suplicy, called for a vote to allow voters to decide if Temer should serve Rousseff's remaining term.
At the rally, Suplicy said, "To show the people's real feelings and so President Temer knows what the Brazilian people are thinking about the coup that was carried out against president Dilma (Rousseff) who did not commit an impeachable offence, much less a crime. She is a serious person who always worked for the good of the Brazilian people".
Temer aims to shift the economy to the right and vowed to boost a shrinking economy and implement austerity measures, to close the gaping void in Brazil's budget, which cost its investment grade rating.
Gustavo Amigo, a demonstrator said, this move would be against the wishes of the Brazilian people.
"Because the Temer government is going to look to make anti-democratic reforms that go against the people. And we're here to show that the people still have power and that despite the coup, we are here in the street to bring down the (current) government and call for a new election."