A Turkish unmanned aerial vehicle (UAV), commonly known as a military drone, flew over the islet of Kandelioussa, in the eastern Aegean, on Thursday.
The UAV entered Athens FIR without submitting a flight plan and violated Greek airspace, the Hellenic National Defense General Staff (GEETHA) said.
The incident occurred at 3.20 a.m. at a height of 19,000 feet.
The drone was identified and intercepted in accordance with international rules of engagement.
Kandelioussa, an uninhabited island, is located west of Nissyros in the Dodecanese.