One of the Ankara attack bombers a Kurdistan Workers' Party member

One of the bombers that claimed 37 lives in capital Ankara yesterday is reportedly a member the outlawed Kurdistan Workers' party (PKK).

According to foreign reports, turkey security officials said evidence obtained showed that the woman bomber was member of PKK and had joined the militant group. However there has been no claim of responsibility.

Earlier, Turkey President Recep Tayyip Erdogan vowed to defeat the terrorists, who have staged a series of attacks in the past 18 months following the bomb blast in capital Ankara.

The Turkish health minister, Mehmet Müezzinoglu had said that 34 were killed in the attack and 71 people were being treated in hospital, of whom 15 were in a serious condition.

Meanwhile, reports said that raids were carried out in southern city of Adana by Turkish police, where 36 suspected PKK members were taken into custody.

Police has launched massive security operation against Kurdish militants in the town of Yüksekova, close to the Iranian and Iraqi borders, reports Guardian.