Russia's ambassador to Iran says all Russian jets have left the base in Iran that they used to carry out airstrikes against the Islamic State group in Syria.
Russia first announced last week that its planes had flown combat missions from Iran, a move that represented a historical rapprochement between Moscow and Tehran.
Iran's Foreign Ministry, however, said Monday that Russia will stop using the base for the time being.
The Interfax news agency on Monday quoted Russia's ambassador to Tehran Levan Dzhagaryan as confirming that all warplanes have been withdrawn. He said, however, that he does "not see any reason" why the Russians can't use the base again.