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MOSCOW, Aug. 22 (Xinhua) -- Russia has withdrawn its military aircraft from Iran's Hamadan air base for strikes in Syria, Russian Defense Ministry spokesman Igor Konashenkov confirmed on Monday.

"Currently, all aircraft of the Airspace Force involved in the operation are on the territory of the Russian Federation," Konashenkov said in a statement.

Further use of the base by Russian warplanes will be done in accordance with bilateral agreements with Iran and depend on the situation in Syria, he added.

Earlier in the day, the Iranian government said Russia has stopped using the base for military operation in Syria.

Beginning on Aug. 16, Russian bombers took off from the Hamadan base in western Iran for three consecutive days to strike terrorist targets in Syria.