Turkey blames Kurdish militants for Ankara car bombing

ANKARA, Turkey -- Turkey on Thursday blamed Kurdish militants at home and in neighboring Syria for a deadly bombing in Ankara and stepped up pressure on the U.S. to sever ties with the Syrian Kurdish militia that has been a key force against the Islamic State group in the complex Syrian conflict.

The blast at rush hour Wednesday killed 28 people and wounded dozens more in a car bombing that targeted buses of military personnel. Ankara's second bombing in four months came as Turkey grappled with an array of serious issues, including renewed fighting with Kurdish rebels, threats from Islamic State militants and the Syria refugee crisis.

Prime Minister Ahmet Davutoglu said a Syrian national with links to Syrian Kurdish militias carried out the attack in concert with Turkey's own outlawed Kurdish rebel group, the Kurdistan Workers' Party, or PKK, which has waged a 30-year insurgency.