SOCHI, Russia (Reuters) - Hopes for a political resolution to the conflict in Syria have never been stronger, Turkish President Tayyip Erdogan said, following a Syria summit with his Iranian and Russian counterparts on Thursday.

Speaking alongside Russia’s Vladimir Putin and Iran’s Hassan Rouhani in the Russian resort of Sochi, Erdogan also there was talk of the U.S. withdrawal from Syria taking place in April or May, but added that the timing remained unclear.