04 July, 2017
Later on Sunday, Turkish President Recep Tayyip Erdogan will meet with Russian Defense Minister Sergei Shoigu.
The YPG is the largest group within the Syrian Democratic Forces battling to oust IS from its Syrian stronghold of Raqqa.
Turkey will continue to take all necessary measures to protect its national security and its borders, said presidential spokesman Ibrahim Kalin, referring to recent harassment fire on Turkish forces from the PKK/PYD-held area of Afrin, northwestern Syria.
Tensions between Washington and Ankara have escalated over U.S. support for the Kurdish People's Protection Units (YPG) in Syria, which Turkey considers a front for outlawed Kurdistan Workers' Party (PKK) separatists.
Earlier, Brett McGurk, the top us envoy for the worldwide coalition against IS, met with Turkish foreign ministry and military officials, a Turkish official said.
The meeting at Tarabya Palace, which was closed to the press, started at 3.15 p.m. (1215GMT) and lasted around two hours, said the source, speaking on condition of anonymity due to restrictions on talking to the media.
McGurk said on Twitter he was holding consultations with Turkey on "mutual efforts to defeat (IS) and ensure it can never return".
