Turkish President Recep Tayyip Erdogan calls for Russia not to be "marginalised" in talks aimed at reviving a key deal to export Ukrainian grain through the Black Sea. "No process that marginalises Russia on the Black Sea grain initiative will be viable," Erdogan tells reporters after the close of the G20 summit in New Delhi. He also announced a forthcoming meeting on the issue between representatives from Russia, Ukraine and the United Nations, without specifying a precise date or location. SOUNDBITE