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 and Congress are threatening harsh sanctions against Moscow for its three-year war in Ukraine.

U.S. President Donald Trump on Sunday threatened to impose additional tariffs on any group linked with the BRICS intergovernmental organization after the group expressed "serious concerns" about him unilaterally imposing tariffs.

Donald Trump says he plans to increase blanket tariffs to 15 or 20 per cent on goods imported by the United States' trading partners. But it appears 'tariff fatigue' is setting in as the Australian dollar and share market largely ignore the US President's latest remarks.

President Trump threatened an additional 10% tariff on imports from countries aligning with BRICS. BRICS, originally Brazil, Russia, India, and China, was used to describe emerging economies.

The levy injects fresh turmoil into a strained bilateral relationship and is a setback as Prime Minister Mark Carney negotiates a new economic partnership with the U.S.