Barbary pirates

Turkey's research vessel Oruc Reis has returned to the port of the southern province of Antalya after finishing seismic studies in the eastern Mediterranean, less than two weeks before a European Union summit where the bloc will evaluate possible sanctions against Ankara.

Turkey has urged Greece to avoid provocative actions against its research vessel Oruç Reis deployed in the eastern Mediterranean or it will be retaliated in kind, a statement in reference to an incident between the two countries involving a frigate, which was later described as "an accident" by the Greek authorities.

Turkey's first drillship, Fatih, set sail from Istanbul's Haydarpaşa Port for a drilling mission in the Black Sea, Turkey's Energy and Natural Resources Minister Fatih Dönmez said on May 29.