Presidents of the United States and Turkey, Barak Obama and Recep Tayyip Erdogan discussed the situation in Syria, said a representative of the White House, Josh Earnest.
According to him, the conversation was initiated by US President who expressed his condolences to Turkish counterpart on the occasion of the terrorist attacks that shook Turkey over the past few days.
"They discussed the situation in Syria," said Ernest, and stressed that "in the past year, Turkey has made serious progress and make great contribution to the international coalition" in the fight against the Islamic state.
According to him, covered with a "significant part of the border, making it possible to reduce the number of foreign fighters who come to Syria."
A representative of the White House, however, said that Ankara "must do more", including covering the remaining part of the border with Syria.