The United States has told India it is unlikely to get a waiver on its planned acquisition of Russian S-400 air defence systems, raising the risk of sanctions similar to those imposed on Turkey for buying that equipment, people aware of the matter said.

Axar.az reports citing foreign media that the Trump administration has been telling India to drop the $5.5 billion deal for five missile systems and avoid a diplomatic crisis, saying New Delhi did not have a wide waiver from a 2017 US law aimed at deterring countries from buying Russian military hardware.

That position is unlikely to change under the Biden administration that takes over next week and that has promised an even tougher US approach towards Russia, the people aware of the discussions told Reuters, speaking on condition of anonymity.