
Demonstrators rally to protest against the government of Brazilian President Dilma Rousseff along Paulista Avenue in Sao Paulo, Brazil on April 12, 2015.

Rousseff's administration is struggling amid a weak economy and a massive corruption scandal involving the country's state-run oil company.

Many demonstrators wore the country's colors -- green, blue and yellow -- waved flags, and chanted: "Out Dilma."

Protesters denounce corruption and demand the impeachment of Rousseff.

Demonstrators hold letters reading "Dilma out" during a protest against the government of president Dilma Rousseff.

Demonstrators protest along Paulista Avenue.

Brazil is heading into a recession again this year, inflation is up and the currency is at a 12-year low.

Before becoming the country's first female president in 2011, Rousseff, from the Workers' Party, was chief of staff to former President Lula da Silva.

She won re-election in October, in one of the tightest races in recent years, but has since seen her approval rate plummet along with the economy.

Also knocking her administration, investigators are unraveling a huge money laundering and bribery case centered around Petrobras, Brazil's state-run oil company. Dozens of politicians, some in Rousseff's party, are accused of accepting millions in payments.

In Rio de Janeiro, Brazilians gathered and marched along Copacabana beach.

People hold signs reading "Workers' Party out" at Copacabana beach.

Protesters gather in Porto Alegre. The President has not been implicated in the investigation, but she was the Energy Minister and chairwoman of Petrobras during much of the time that the alleged corruption took place.

Demonstrators in Brazil protest against the government of President Dilma Rousseff in Paulista Avenue in Sao Paulo on March 15, 2015.

Protesters denounce corruption and demand the impeachment of Rousseff.

A demonstrator holds a banner reading "Dilma out and take the Workers' Party with you."

Demonstrators protest along Paulista Avenue.

In Rio de Janeiro, they gathered along Copacabana beach, as pictured. In the capital, Brasilia, protesters marched on government headquarters.

Brazilians march along Copacabana beach.

