The U.S. president has threatened a 10 percent tariff on any country aligned with the BRICS bloc, a potential blow to Russia.

President Trump threatened late Sunday to impose an additional tariff on countries that align themselves with the policies of BRICS nations, after the group expressed “serious concerns” over countries imposing unilateral tariffs.

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.