Brazilians critical of their government's ambiguous response to a surging coronavirus pandemic dug 100 graves and stuck black crosses in the sand of Rio's Copacabana beach on Thursday in a tribute to the nearly 40,000 people who have died so far.
The country has become a major epicentre of the global pandemic, with the world's worst outbreak after the United States.
"The president has not realized that this is one of the most dramatic crises in Brazil's history," said organizer Antonio Carlos Costa, referring to President Jair Bolsonaro. "Families are mourning thousands of dead, and there is unemployment and hunger."
"We are here to demand a change of attitude from the president... who must understand that our nation is facing the most difficult moment in its history."
The action comes as a worrying social crisis is brewing in Latin America where the coronavirus pandemic is spiralling, experts are warning.
More than 1.5 million people have been infected in Central and South America - 70,000 of them are already dead - with no signs of the disease slowing, especially in hard-hit Brazil.
The crisis could provoke the region's "worst recession in history", the UN Economic Commission for Latin America and the Caribbean (ECLAC) said.