The US government is seriously looking into the hacking of social media accounts of the military's Central Command, the White House said.
The Indian contingent of 550 personnel is among the largest Indian deployments for an overseas military exercise.
The unexpected missile attack on a second India-bound ship carrying Russian crude, just three weeks after the first, has complicated matters for domestic refiners. India now counts the Vladimir Putin-led nation as its biggest oil supplier, according to Paris-based market intelligence agency Kpler, and these attacks come on top of US sanctions since December, where vessels that bring crude to India are facing heightened scrutiny. Panama-registered Pollux, which loaded crude at the Sheshkaris oil terminal in the Russian port of Novorossiysk on January 24, was scheduled to deliver the medium, sour Urals grade to Paradip port on February 28.