A fleet of Russian warships berthed in the Caspian port of Enzali in Iran on October 13.
Russian Navy ships "Daghestan" and "Grad Sviazhsk" were welcomed by local Iranian officials and Russia's Ambassador to Tehran, Levan Dzhagarian.
The vessels from Russia's Caspian Fleet came to Iran after holding joint exercises with two Kazakh warships last week.
After visiting Enzali, the Russian warships will head to Baku, Azerbaijan.
The Russian Navy ships are visiting ports of the three Caspian states as part of a 20-day program to develop international cooperation between the Caspian states.
It was not clear why the Russian vessels did not also visit Turkmenistan, the only other Caspian state.
Last month, the leaders of five Caspian states -- Azerbaijan, Iran, Kazakhstan, Russia, and Turkmenistan, met in the Russian city of Astrakhan and agreed to prevent foreign militaries from gaining any influence in the Caspian Sea.