World Bulletin / News Desk
Turkish President Recep Tayyip Erdogan will host the meeting in capital Ankara on Wednesday. Russian President Vladimir Putin and Iranian President Hassan Rouhani will attend the talks which will focus on the extension of the cease-fire in Syria, securing territorial integrity and preventing violations.
Senior officials of the three countries will gather on Tuesday to work on a joint declaration which will be released after the summit.
The declaration will demand an extension to a 30-day UN cease-fire resolution adopted late in February, said the sources, who requested anonymity due to restrictions on speaking to the media.
Top diplomats Mevlut Cavusoglu, Sergey Lavrov and Javad Zarif from Turkey, Russia and Iran, respectively, will discuss solutions to the conflict.
The leaders will also hold bilateral talks.
Turkey, Russia and Iran are the guarantor countries of de-escalation zones in Syria.