Eleven people have been arrested in connection with a suicide attack in Ankara which Turkish officials say was carried out by two bombers – one male and one female.
The woman said to have been involved in the attack joined the PKK (Kurdistan Workers Party) in 2013, officials said.
She was born in 1992 and from the eastern Turkish city of Kars, they added, while the male is also described as a Turk with PKK links.
The blast ripped through Kizilay, a major shopping and transport hub, in the centre of the Turkish capital on Sunday night, killing at least 37 and injuring around 125 people.
It was the third terror attack in Ankara in six months.
Sky’s Jonathan Samuels, in Ankara, said: “We’ve heard that two suicide bombers were involved.
“They turned up in a BMW which was packed with … nails and pellets, to cause maximum carnage.
“That BMW was traced, using the chassis number, back to a town in eastern Turkey and as a result … they have been able to identify … the two.”
Fighter jets struck arms depots and shelters of the PKK in the Iraqi mountainous areas of Qandil and Gara on Monday, according to Turkey’s army.
Earlier, Turkey’s president Recep Tayyip Erdogan pledged that “terrorism will be brought to its knees”.
Kurdish militants are known to use bases in northern Iraq in their ongoing conflict with Turkey for an independent homeland and greater rights for Kurds.
Police detained another 15 suspected Kurdish militants in Istanbul and 50 elsewhere in the country, reports said.
Meanwhile, the authorities declared a nighttime curfew in the mainly Kurdish southeastern Turkish town of Sirnak and prepared army operations in the towns of Nusaybin and Yuksekova.
No group has claimed responsibility for Sunday’s attack as yet but a car bombing near a military headquarters in Ankara in February that left 28 dead was later claimed by the Kurdistan Freedom Hawks (TAK), a splinter group of the PKK.
David Cameron has spoken to his Turkish counterpart Ahmet Davutoglu to express his “sincere condolences” and offer support.
The assistance includes “sharing information on the incident”, the Prime Minister’s spokeswoman said.
Labour’s shadow foreign secretary Hilary Benn called the latest bombing a “shocking and cowardly terrorist attack”.
Dozens of officials joined family members at an Ankara mosque for the first funerals of those who died.