Turkey on Tuesday warned the United States against repeating violations of Turkish airspace at the border with Iraq, threatening unspecified action. The note of protest was handed to a member of the U.S. diplomatic mission, who was summoned to the Turkish Foreign Ministry. MFA representative Levent Bilman said all essential measures have been taken, APA reports.

The warning followed violations by two U.S. F-16 warplanes on May 24, which some Turkish media described as a deliberate attempt at intimidation as Ankara discusses whether it undertake a military strike at PKK bases in northern Iraq.

After a 4-minute flight the planes turned round. The Turkish air defense troops did not commence fire, since F-16 belong to the NATO ally.