The Turkish military said the Daglica air strikes were a response to sustained Kurdistan Workers Party (PKK) shelling of a military outpost in the area. The PKK had attacked the outpost for three days with heavy machine guns and rocket launchers, Hurriyet reported.
Last week Kurdish protests gripped Turkey's Kurdish-majority south-eastern provinces. At least 31 people died in widespread street clashes, as Kurds vented their anger at Turkey's passive policy over Kobani. The army imposed a curfew in some areas. But some of the fighting was reported to be between PKK supporters and Islamist Kurds sympathetic to IS.
Inside Syria heavy fighting has been raging in Kobani since mid-September, as Syrian Kurds battle to defend the town against better-armed IS militants. Turkey treats the PKK as a "terrorist" organisation and its leader Abdullah Ocalan is in jail. But he has been Turkey's main point of contact in peace negotiations since he was incarcerated in 2012.
The PKK - also labelled "terrorist" by Western governments - has been waging a 30-year insurgency for self-rule in eastern Turkey. The unrest has killed more than 40,000 people.