With relations between Athens and Ankara on a downturn, Turkey warned on Saturday that there will be a "heavy price" to pay for "provocations" in the Aegean, the Mediterranean or Cyprus.
"All should know that provocations in the Aegean, Mediterranean and Cyprus will have no effect," Turkey's Defense Minister Hulusi Akar said Saturday, according to the state-run Anadolu news agency.
Turkish media on Tuesday claimed that Ankara had asked Athens to take down a Greek flag erected on an Aegean islet disputed by Turkey before doing so itself.
According to daily Hurriyet, Ankara had told authorities in Athens on Saturday that a Greek flag had been spotted by its coast guard on the tiny islet of Mikros Anthropofagos near Fourni.
Greek government spokesman Dimitris Tzanakopoulos said on Monday that there was no evidence of any "violation of Greek territory" following claims by Turkish Prime Minister Binali Yildirim that the Turkish coast guard took down Greek flag from an Aegean islet.
Yildirim had indicated that the islet was in a "disputed area" in the Aegean, a concept that Greece rejects.