Four-nation Syria summit calls for lasting Idlib ceasefire

A joint statement adopted at the end of a major summit in Istanbul said the countries were committed to working "together in order to create conditions for peace and stability in Syria".It also "stressed the importance of a lasting ceasefire" in Idlib, while hailing "progress" following a deal last month between Syrian-regime supporter Russia and rebel-backer Turkey to create a buffer zone around the northwestern province.