President Donald Trump announced an additional 25% tariff on India as punishment for importing Russian oil, according to a document posted on the White House website — an escalation of his trade battle with New Delhi and his first use of so-called secondary sanctions on countries the US says are fueling Moscow’s war machine.

India, which now faces among the highest tariff rates imposed by the US, called the levy "unjustified and unreasonable".

By Krishna N. Das, David Brunnstrom and Shivam Patel NEW DELHI/WASHINGTON (Reuters) -U.S. President Donald Trump's tirade against India over trade and Russian oil purchases threatens to undo two decades of diplomatic progress,