The militants had been killed in Hakkari, Mardin and Sirnak provinces on Saturday, the Turkish General Staff said.
Seventeen PKK militants were killed during heavy clashes in the Kurdish-populated city of Yuksekova in Hakkari Province, while six others were killed in the southeastern city of Nusaybin, according to the Turkish military, which said four other PKK members were also killed during military operations in various districts of Sirnak Province.
Some 92 rocket-propelled grenade (RPG) rounds, 5,500 Dragunov sniper rifle bullets and 137 grenades were also seized by Turkish military during a search operation in the Cukurca district of Hakkari Province.
Turkey has been engaged in a large-scale campaign against the PKK in its southern border region in the past few months. The Turkish military has also been conducting offensives against the positions of the group in northern Iraq and Syria.