U.S. President Donald Trump said on Tuesday the U.S. would "pretty soon" charge a 10% tariff on imports from BRICS countries, drawing another complaint from Brazil President Luiz Inacio Lula da Silva,

Developing nations at the BRICS summit on Monday brushed away an accusation from President Donald Trump that they are "anti-American," with Brazil's president saying the world does not need an emperor.

Trump said the U.S. will impose an additional 10% tariff on any countries aligning themselves with the "Anti-American policies" of the BRICS group of developing nations, whose leaders kicked off a summit in Brazil.