Turkey's premier said Wednesday that Islamic State and Kurdish separatists both played active roles in the country's deadliest terrorist attack, and took aim at the U.S. and Russia for what he said was threatening Turkey's safety with policies supporting Syrian Kurdish militias.
Four days after twin suicide bombings in the capital, Ankara, killed at least 97 people, Prime Minister Ahmet Davutoglu said investigations showed the outlawed Kurdistan Workers' Party, or PKK, was also involved in the assault he earlier said was most likely carried out by Islamic State.
"We will continue our probes to exhaust all these organizational ties," Mr. Davutoglu said in Istanbul.
"Regardless of who did this through what links, we will identify those who carried out this vile attack and deliver them to justice."