At least 10 people are killed in a prison riot between rival gangs in Natal, Brazil.
New York reports its first case of the Lineage P.1 variant, which was originally detected in Brazil. The patient is a Brooklyn woman in her 90s in Mount Sinai Hospital who had no travel history.
Ambassadors for EU member states meet today to develop criteria for reopening external borders to travelers on July 1. European Commission guidance is that non-EU countries whose COVID-19 status, e.g., the number of new infections, the trend in new infections, and testing and tracing, are comparable or better than the EU average will make the safe list. Other factors, such as reciprocity and links to the EU, will also be considered. Travelers from countries such as Brazil, Russia, and the United States may be barred based on these rules.
Thirty-seven passengers on a bus over Rio–Niterói Bridge, Rio de Janeiro, Brazil, are held hostage before police fatally shoot the armed hijacker. After closer inspection, police discover that the hijacker used a fake plastic gun.
An open letter from international politicians, activists, journalists, and academics demands an independent commission be formed to investigate the assassination of Brazilian human rights activist Marielle Franco and her driver.
Brazilian politician and outspoken police critic Marielle Franco is killed along with her driver in a drive-by shooting in Rio de Janeiro.
Brazilian police detain fugitive Italian former left-wing guerrilla and convicted murderer Cesare Battisti, as he was attempting to flee across the border into Bolivia to avoid extradition back to Italy and facing his life sentence prison term for four murders in the 1970s.
Brazil is to investigate the supposed murder of ten members of an Amazonian tribe in the Javari Valley.
Brazilian police enter the Alcacuz prison outside the city of Natal, Rio Grande do Norte, after a week of fighting leaves 26 inmates dead. At least 126 people have been killed in Brazil's prisons since the beginning of the year.
Police again fire tear gas at demonstrators participating in nationwide protests across Brazil.
About eighty tons of dead fish are discovered and removed in a lagoon in Rio de Janeiro, Brazil, likely due to localized ocean anoxia and algal blooms.