Russia is modernizing its S-300 missile system to supply to Iran, an adviser to Russian President Vladimir Putin said on July 30, RIA news agency reported.
Vladimir Kozhin, a presidential adviser on military matters, said the S-300 air defense missile systems will be upgraded before being delivered to Iran, since the original contract was signed a long time ago. He wouldn't offer specifics or say when the delivery would take place.
Russia cancelled a contract to deliver the advanced missile system to Iran in 2010 under pressure from the West. But Putin lifted that self-imposed ban in April following an interim nuclear deal between Iran and world powers.
Moscow is hoping to reap economic and trade benefits now that a more comprehensive nuclear deal between Iran and world powers has been reached, allowing for an easing of sanctions on the Islamic republic.
Israeli Prime Minister Benjamin Netanyahu has expressed Israel's "dismay" at Russia's decision to supply the S-300s to Iran, and the United States also has expressed concern.