President Donald Trump has announced a 25 percent tariff increase on Indian imports, raising the total duty to 50 percent, in response to India’s continued purchase of Russian oil. The move, set to take effect on 27 August, is aimed at pressuring countries to cut ties with Moscow over its actions in Ukraine, according to BBC.

India called the tariff “unfair and unjustified”, saying it buys Russian oil to meet its energy needs after traditional supplies were diverted. Delhi warned it will take necessary steps to protect its interests.

Experts say the hike could cut Indian exports to the US by up to 50 percent, straining trade ties between the two partners, BBC reported.