Turkey's prime minister said authorities have detained 11 people in connection with Sunday's bombing in Ankara that killed 37 people.
Turkey has obtained "very serious and almost certain" findings that point to the Kurdistan Workers Party (PKK) militant group having carried out the attack, Prime Minister Ahmet Davutoglu said.
There has not been any claim of responsibility for the bombing and Davutoglu said DNA investigations were being done to identify the attackers. He also said added in comments broadcast live on television that Turkey had carried out airstrikes against PKK camps in Northern Iraq after the perpetrators of the attack were determined.
A senior government official said authorities believe Sunday's attack was carried out by two bombers — one of them a woman. The state-run Anadolu Agency says police detained dozens of suspected militants in southern Adana city on Monday.
It was the second deadly attack blamed on Kurdish militants in the capital in the past month and President Recep Tayyip Erdogan vowed to bring "terrorism to its knees."
The blast came as Turkey's security forces were set to launch large-scale operations against militants in two mainly Kurdish towns after authorities imposed curfews, prompting some residents to flee.
Want to enjoy 'Zen' reading - with no ads and just the article? Subscribe todaySubscribe now