One Turkish soldier and three suspected members of the outlawed Kurdistan Workers' Party (PKK) were killed in eastern Turkey in new violence blamed on the Kurdish rebels, AFP reports, based on a statement from the army.
Fighting erupted in the early hours of Sunday near Kagizman town in eastern Kars province during an operation to capture Kurdish militants, the Turkish Armed Forces (TSK) said in a statement.
Two soldiers were wounded and one of them later died of his injuries in hospital, the army said, adding that the security forces had shot dead three PKK members.
Ankara is currently waging a two-pronged "anti-terror" offensive against ISIS jihadists in Syria and PKK militants in northern Iraq and the southeast of Turkey following a wave of attacks.
But, so far, Turkish air strikes have overwhelmingly concentrated on the separatist Kurdish rebels, who have responded by tearing up a 2013 ceasefire and waging a bloody campaign against the security forces.
More than 40 members of the Turkish security forces have been killed in violence linked to the PKK since the crisis began on July 20 when a suicide bombing blamed on IS left scores of pro-Kurdish activists dead in the town of Suruc.