Iranian Foreign Minister Mohammad Javad Zarif has welcomed Monday's announcement by Russia and Turkey of a buffer zone between rebels and government forces in Syria's Idlib province.
Writing on Twitter, he said, "Intensive responsible diplomacy over the last few weeks-pursued in my visits to Ankara & Damascus, followed by the Iran-Russia-Turkey Summit in Tehran and the meeting is Sochi-is succeeding to avert war in Idlib with a firm commitment to fight extremist terror. Diplomacy works."