President Donald Trump said he would put an additional 10% tariff on any country aligning themselves with “the Anti-American policies of BRICS,” injecting further uncertainty into global trade as the US continues to negotiate levies with many trading partners.

President Donald 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 on Sunday.

Brazil is playing host to a summit of the BRICS bloc of developing economies Sunday and Monday during which pressing topics like Israel's attack on Iran, the humanitarian crisis in Gaza and trade tariffs imposed by U.