The Turkish army started bombing Kurdish camps in northern Iraq overnight, hours after a car bomb attack in the capital Ankara killed at 28 people,Reuters reports.
Dozens were also wounded after the car laden with explosives detonated next to military buses near the armed forces' headquarters.
Six Turkish security force members were also killed on Thursday, as a bomb detonated by remote control hit a military convoy in southeast Turkey, according to Reuters.
According to security sources, the convoy was hit on the highway linking Diyarbakir, the largest city in the mainly Kurdish southeast, to the district of Lice.
Turkey's Prime Minister Ahmet Davutoglu said in a speech on live television on Thursday that the perpetrator of the Ankara attack was a member of the Syria Kurdish YPG militia working with insurgents from the PKK. No one has yet claimed responsibility for the attack.
The leader of the Syrian Kurdish YPG has denied his group was behind the attacks in Turkey, and warned Ankara about a ground action in Syria, the Associated Press reports.

