Talks between Russian President Vladimir Putin and his Turkish counterpart Recep Tayyip Erdogan have begun, with the Turkish leader seeking to persuade Russia to revive an agreement that allowed Ukraine to export grain and other commodities from three Black Sea ports.In July, Mr Putin refused to extend the agreement, which was brokered by Turkey and the United Nations a year earlier.Russia complained that a parallel deal promising to remove obstacles to Russian exports of food and fertiliser had

Talks between Russian President Vladimir Putin and his Turkish counterpart Recep Tayyip Erdogan have begun, with the Turkish leader seeking to persuade Russia to revive an agreement that allowed Ukraine to export grain and other commodities from three Black Sea ports.In July, Mr Putin refused to extend the agreement, which was brokered by Turkey and the United Nations a year earlier.Russia complained that a parallel deal promising to remove obstacles to Russian exports of food and fertiliser had not been honoured.