Turkish officials at a ceremony of a soldier killed in clashes with Kurdish militants, Ankara, Feb. 18.

ANKARA — Turkish Prime Minister Ahmet Davutoglu blamed a Syrian Kurdish militia fighter working with Kurdish militants inside Turkey for a suicide car bombing that killed 28 people in the capital Ankara; and he vowed retaliation in both Syria and Iraq.

A car laden with explosives detonated next to military buses as they waited at traffic lights near Turkey’s armed forces’ headquarters, parliament and government buildings in the administrative heart of Ankara late on Wednesday.

Davutoglu said the attack was clear evidence that the YPG, a Syrian Kurdish militia that has been supported by the United States in the fight against ISIS in northern Syria, was a terrorist organization and that Turkey, a NATO member, expected cooperation from its allies in combating the group.

Within hours, Turkish warplanes bombed bases in northern Iraq of the Kurdistan Workers Party (PKK), which has waged a three-decade insurgency against the Turkish state and which Davutoglu accused of collaborating in the car bombing.

Turkey’s armed forces would continue their shelling of recent days of YPG positions in northern Syria, Davutoglu said, promising that those responsible would “pay the price”

“Yesterday’s attack was directly targeting Turkey and the perpetrator is the YPG and the divisive terrorist organization PKK. All necessary measures will be taken against them,” Davutoglu said in a televised speech. γ