Istanbul:
Turkish warplanes took off Sunday evening for a new wave of air raids on bases of the rebel Kurdistan Workers Party (PKK) in northern Iraq, according to Turkish media reports.
The first round of bombardments, which were unleashed late Friday, has threatened to unravel a fragile truce that has largely held since 2013.
The F-16s took off from Diyarbakir in southeastern Turkey and headed towards the PKK's rear bases in Mount Kandil, CNN-Turk and NTV channels said.
The PKK on Saturday said that the conditions were no longer in place to observe the ceasefire, following the heaviest Turkish air strikes on its positions in northern Iraq since August 2011.
Turkey launched the strikes after a string of attacks in recent days against its security forces that have been blamed on PKK militants.