US Secretary of State Rex Tillerson held talks with Turkish President Recep Tayyip Erdogan in Ankara, seeking to ease tensions between the NATO allies that reached new heights over Ankara's ongoing operation inside Syria. A State Department official said Tillerson and Erdogan had a productive and open conversation about a mutually beneficial way forward for US-Turkey ties.<br/>A prime task of President Donald Trump's top diplomat is to allay Turkish anger over US policy in Syria, a dispute which has ignited the biggest crisis in bilateral ties since the 2003 Iraq war. But Turkish presidential sources said Erdogan made no secret of Turkey's concerns during the over three-hour meeting with the former chief of energy giant Exxon Mobil.<br/>In the talks, Turkey's priorities and expectations on all these topics were clearly conveyed to the US secretary of state, said a source.Tillerson will meet this morning Foreign Minister Mevlut Cavusoglu who was the only other officers present at the meeting and acted as translator, US sources said.<br/>Turkey's operation against the YPG, which Ankara blacklists as a terror group, has seen Turkish troops fighting a militia which is closely allied with the US in the battle against Islamic State.