MOSCOW, Nov. 12 (UPI) — Moscow officials Thursday downplayed Western pressures over the possible sale of the S-300 missile defense system to Iran.

Russia and Iran signed a contract in 2005 for the sale of the S-300 missile defense system, though developments on the delivery have since stalled.

Konstantin Biryulin, deputy director for Russia’s federal service for military-technical cooperation, said the matter was still under consideration despite mounting Western pressure over dealing with Iran, RIA Novosti reports.

“The issue of S-300 deliveries is still under discussion,” he said.

Speculation circulated that Moscow scrapped the deal following a decision from Washington to abandon plans to place its missile defense shields in Eastern Europe.

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