Prime Minister Ahmet Davutoglu said between 60 and 70 PKK militants were killed in the airstrikes, including some senior figures of the Kurdish militant group.
At least 28 people lost their lives in the Wednesday bombing, during which a car laden with explosives detonated next to military buses as they waited at a traffic light.
In remarks on Thursday, Davutoglu said the man behind the Ankara bombing was a member of the Syrian Kurdish YPG group. He also accused the Syrian government of being directly responsible for the blast.Another bombing targeted a military vehicle in southeast Turkey on Thursday, killing at least seven security forces.
The group denied carrying out the attack, with its chief saying Ankara was making the allegation in order to escalate the conflict in Syria.
Davutoglu said PKK militants collaborated with the Syrian man to carry out the deadly attack.
“The attack was carried out by the PKK together with a person who sneaked into Turkey from Syria,” he said, adding nine people had been arrested in connection with the bombing.