Turkish and Iranian presidents on Thursday spoke over the phone and hailed the increased cooperation between the two countries on security issues and on fight against terrorism, according to presidential sources.
The sources, who spoke on condition of anonymity due to restrictions on talking to the media, said Recep Tayyip Erdoğan and Hassan Rouhani discussed latest developments in Syria.
The two leaders also hailed progress made at Sochi talks, which was started by Russia and supported by Turkey and Iran.
Erdoğan and Rouhani agreed to hold a summit of the leaders of Turkey, Russia and Iran in Istanbul on the Syrian conflict.
Earlier on Thursday, Erdoğan and Russian President Vladimir Putin also agreed to hold a trilateral meeting with Iran on Syria, while the two leaders spoke over the phone.