In this handout photo released by the Russian Foreign Ministry, Russia's Foreign Minister Sergey Lavrov and Iran's Foreign Minister Hossein Amirabollahian arrive for the four-party meeting of the foreign ministers of Russia, Turkey, Iran, and Syria to discuss the diplomatic resolution of the Syrian conflict, in Moscow, Russia. A meeting was scheduled between the foreign ministers of Russia, Syria, and Turkey to resolve the differences between Ankara and Damascus. However, Turkish President Recep Tayyip Erdogan later allowed for the possibility of Iran's inclusion in the high-level talks planned between Turkey, Russia, and Syria. Editorial use only, no archive, no commercial use.