U.S. President Donald Trump has threatened India with increased tariffs over its purchase of Russian oil amid Moscow's war in Ukraine.

U.S. President Donald Trump again threatened on Monday to raise tariffs on goods from India even higher than the current announced rate of 25% over its Russian oil purchases. New Delhi called his attack "unjustified" and vowed to protect its economic interests.

President Donald Trump said he would be “substantially raising” the tariff on Indian exports to the US over the Asian nation’s purchases of Russian oil, a move New Delhi slammed as unjustified in an escalating fight between the two major economies.