Reuters - Turkish President Tayyip Erdogan will visit Iran on Sept 7, his office said on Monday, on a trip expected to include a three-way summit with Russian and Iranian leaders.

The Kremlin said nearly two weeks ago that Russian President Vladimir Putin may take part in a meeting with Erdogan and Iranian President Hassan Rouhani at the beginning of September. The three leaders met in April in Ankara, where they discussed developments in Syria.

Reporting by Orhan Coskun; Writing by Ali Kucukgocmen; Editing by Dominic Evans