Dialogue and negotiation are key in addressing issues of delimitation of maritime boundaries and exploitation of resources, EU foreign ministers said Friday.
Officials talked about the situation in the Eastern Mediterranean after a recent deterioration of the security situation.
"Three words reflect the outcome of the discussion: solidarity, de-escalation, and dialogue," a statement said following the video conference meeting.
It reaffirmed the bloc's solidarity with Greece and the Greek Cypriot administration, and underlined "the serious deterioration in the relationship with Turkey is having far-reaching strategic consequences for the entire EU, well beyond the Eastern Mediterranean."
The statement claimed that Turkey's recent activities mount tension, and "Immediate de-escalation by Turkey was considered crucial."
Also stressing the importance of relations with Turkey, the ministers said, "issues related to delimitation of maritime boundaries and exploitation of resources therein can only be addressed through dialogue and negotiation, in good faith, in accordance with international law and in pursuit of the principle of good neighbourly relations, and not through unilateral actions and the mobilisation of naval forces."
Recalling the outcome of the Foreign Affairs Council on July 13, the ministers reiterated strong support for efforts to re-establish dialogue and facilitate re-engagement with Turkey.
"At the same time, the High Representative/Vice-President [Josep Borrell] is to prepare options on further appropriate measures in case tensions do not abate," it said.
It noted that a broader discussion about ties with Turkey will be held in August, at the informal Foreign Affairs Council (Gymnich).
Earlier this week, Turkey resumed energy exploration in the Eastern Mediterranean region after Greece and Egypt signed a controversial maritime delimitation deal.
The agreement came one day after Ankara said it would postpone oil and gas exploration as a goodwill gesture.
But after declaring the Greek-Egyptian deal "null and void," Turkey authorized the Oruç Reis seismic research vessel to continue its activities in an area within the country's continental shelf.
The ship will continue a two-week mission until Aug. 23 along with the Cengiz Han and Ataman.
Turkish President Recep Tayyip Erdoğan said the only solution to the dispute was through dialogue and negotiation and urged Athens to respect Turkey's rights.
Turkey has consistently opposed Greece's efforts to declare an exclusive economic zone based on small islands near Turkish shores, violating the interests of Turkey, the country with the longest coastline in the Mediterranean.
