Turkish soldiers killed at least 10 rebels from the outlawed Kurdistan Workers' Party (PKK), according to media reports on Tuesday, DPA reported.
Weapons and ammunition were also found during the operation in the south-eastern province of Diyarbakir.
The PKK has been designated a terrorist organization by Turkey and the United States. Kurdish organizations in south-eastern Turkey, where Kurds are a majority, accuse Turkey of systematic discrimination.
For the past 30 years, the PKK has conducted a low-level guerrilla war in eastern Turkey aimed at creating an independent Kurdish state.
Operating mainly from bases in the Kurdish enclave in northern Iraq, the PKK continues to target Turkish military and civilian administrative targets and energy installations, and, less frequently, Western tourists visiting Turkish resorts.