Turkey's president says that despite denials, evidence obtained by Turkish authorities points to Syrian Kurdish militias as being behind the car bombing in Ankara that killed 28 people. Recep Tayyip Erdogan, speaking to reporters Thursday during a visit to the chief of military staff's office, said the attack would show the international community the strong links that exist between Turkish rebel group the PKK, and the Syrian Kurdish militia groups. Turkey insists that the Syrian militias and the PKK are the same and both are terror groups. It has been pressing its ally, the United States, to recognize the Syrian Kurdish forces as terrorists. The U.S. already lists the PKK as a terror group. But Washington has relied heavily on the Syrian Kurds in the battle against the Islamic State group and has rejected Turkish pressure.