TEHRAN (Press Shia) – Russia will open a special service center in Iran offering after-sale assistance for air defense systems, Russia’s Presidential Aide for Military Cooperation Vladimir Kozhin said.

"We are creating a special service center in Iran, where we supplied our air defense equipment," Kozhin said, Vestnik Kavkaza website reported on Monday.

He further said that the military-technical cooperation to create Russian service centers "will be definitely developed."

Iran took delivery of the S-300 defense missile system in July 2016.

The Iranian military successfully tested the Russian-made surface-to-air defense system in March 2017.