The airstrike occurred at 9:45 a.m. local time (0645 GMT) when a Turkish drone attacked a gathering of PKK militants in Makhmour refugee camp, southeast of the provincial capital Mosul, the statement said, Xinhua news agency reported.
Turkish forces frequently carry out cross-border operations targeting PKK militants in northern Iraq, with a particular focus on the Qandil Mountains, which serve as the group's stronghold.
The PKK, designated as a terrorist organisation by Turkey, the United States, and the European Union, has rebelled against the Turkish government for more than three decades.