Turkish Stars, the aerobatic team of the Turkish Air Force, perform a manoeuvre during a ceremony marking the 93rd anniversary of Victory Day in Ankara, Turkey, August 30.

Turkish warplanes have bombed Kurdistan Workers Party (PKK) targets in northern Iraq overnight, a security source told Reuters on Friday, the latest in a series of daily air strikes on the militants as conflict surges in southeast Turkey.

The source said more than 15 warplanes struck sites where the PKK are located at Qandil, Zap and Avashin in the mountains of northern Iraq in attacks launched shortly before midnight that continued until 02:00 GMT.

Turkey’s mainly Kurdish southeast has seen almost daily clashes between militants from the outlawed Kurdistan Workers Party (PKK) and security forces since July.

The conflict has shattered a peace process begun by President Tayyip Erdogan in 2012 to end an insurgency that has killed more than 40,000 people over three decades.