REUTERS - 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 Islamic State in northern Syria, was a terrorist organization and said 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.
The PYD, the political arm of the YPG, denied involvement in the bombing, while a senior member of the PKK said he did not know who was responsible.
The attack was the latest in a series of bombings in the past year mostly blamed on Islamic State militants.
Turkey is getting dragged ever deeper into the war in neighboring Syria and is trying to contain some of the fiercest violence in decades in its predominantly Kurdish southeast.
The YPG militia, regarded by Ankara as a hostile insurgent force deeply linked to the PKK, has taken advantage in recent weeks of a major Syrian army offensive around the northern city of Aleppo, backed by Russian air strikes, to seize ground from Syrian rebels near the Turkish border.
That has alarmed Turkey, which fears the advances will stoke Kurdish separatist ambitions at home. It has been bombarding YPG positions in an effort to stop them taking the town of Azaz, the last stronghold of Turkish-backed Syrian rebels north of Aleppo before the Turkish frontier.
Hundreds of Syrian rebels with weapons and vehicles have re-entered Syria from Turkey over the last week to reinforce insurgents fending off the Kurdish-led assault on Azaz, rebel sources said on Thursday.
Kurdish militia denial
The co-leader of the PYD denied that the affiliated YPG perpetrated the Ankara bombing and said Turkey was using the attack to justify an escalation in fighting in northern Syria.
"We are completely refuting that. ...Davutoglu is preparing for something else because they are shelling us as you know for the past week," Saleh Muslim told Reuters by telephone.
Turkey has said its shelling of YPG positions is a response, within its rules of engagement, to hostile fire coming across the border into Turkey, something Muslim also denied.
"I can assure you not even one bullet is fired by the YPG into Turkey ... They don't consider Turkey an enemy," he said.
The co-leader of the PKK umbrella group, Cemil Bayik, was quoted by the Firat news agency as saying he did not know who was responsible for the Ankara bombing. But the attack, he said, could be an answer to "massacres in Kurdistan", referring to the Kurdish region spanning parts of Turkey, Syria, Iraq and Iran.
Turkey has been battling PKK militants in its own southeast, where a 2-1/2 year ceasefire collapsed last July and pitched the region into its worst bloodshed since the 1990s. Six soldiers were killed and one wounded on Thursday when a remote-controlled handmade bomb hit their vehicle, the military said.
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