U.S. President Barack Obama telephoned his Turkish counterpart Recep Tayyip Erdogan on Tuesday to extend his condolences over recent terror attacks, Erdogan’s office said.

Obama condemned last week’s suicide attack in Istanbul that killed ten German tourists, as well as a car-bombing in Diyarbakir, southeast Turkey that killed six, the president’s office said. Accırdig to Anadolu Agency, The Istanbul attack was carried out by Daesh, according to Turkish officials, while the car-bomb was organized by the terrorist PKK group.

The leaders reiterated their determination to cooperate against any terrorist organization, the office said.

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