US President Barack Obama and Turkish President Tayyip Erdogan telephonically discussed the war in Syria and international efforts to defeat Islamic State militants.

The White House in a statement said President Obama stressed the importance of international cooperation to maintain the cessation of hostilities in Syria and to make progress on a negotiated political transition in the country.

The two leaders also agreed on the urgency of continued efforts to defeat Islamic State and to disrupt the militant group's capacity to conduct attacks in Turkey, Europe and elsewhere.

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