Russia accused the United States on Tuesday of exerting illegal trade pressure on India after U.S. President Donald Trump threatened again to raise tariffs on India over its purchases of Russian oil.

The development comes days after Trump imposed 25 per cent tariff on Indian imports plus an unspecified penalty on India for Russian oil imports.

The Guinness brewer now expects to take a $200 million annual hit from tariffs, although it said it could mitigate half of that.