The United States has ruled out any special waiver for India from its sanctions if it buys new weapons from Russia.
Speaking at a forum in Washington, Pentagon Official Randall Schriver said prospect of India buying missile system is troubling for a lot of reasons and no waiver for it can be assured.
India intends to procure new systems from Russia, including its S-400 long-range, surface-to-air missile system.
Under current US rules, third countries could face sanctions if they transact with Russian defense or intelligence sectors.