Athens issues counter-NAVTEX for Turkish research vessel off Kastellorizo

Greek authorities have issued a counter-Navtex, or navigation warning, in response to a Turkish research vessel operating near the southern Aegean island of Kastellorizo, escalating tensions between the two nations over maritime boundaries and sovereignty claims. The move follows a navigation directive issued by Turkey's hydrographic station in Antalya, which sought to reserve an area under Greek jurisdiction for scientific research conducted by the R/V TÜBİTAK MARMARA from September 1 to 15. Athens has rejected the validity of this directive, calling it an act of provocation by an unauthorized entity. The Turkish research vessel departed from the port of Marmaris and is currently operating southwest of Kastellorizo, a strategically located island in the Dodecanese group. According to Greek military sources, a Hellenic Coast Guard vessel has been deployed to monitor the movements of the Turkish ship, while additional Greek naval units are present in the surrounding waters. The Greek navy emphasized that the area in question lies within the Greek continental shelf and that only the authorized hydrographic station in Heraklion, Crete, has the authority to issue navigational instructions for such regions. Greek officials have clarified that the disputed area is not officially designated as an exclusive economic zone (EEZ), though it is part of Greece's broader maritime territory. They further noted that the Turkish vessel is engaged in water-column research, focusing on the surface layer rather than conducting seabed surveys. This distinction is crucial, as it frames the conflict more around the legitimacy of the navigational directives issued by Turkey rather than the physical presence of the vessel itself. The incident occurs against a backdrop of rising diplomatic friction between Greece and Turkey. Recent months have seen Ankara unilaterally declare several maritime areas as "maritime parks," a move Athens has condemned as illegal under international law and the United Nations Convention on the Law of the Sea (UNCLOS). These declarations are viewed by Greece as attempts to assert control over disputed waters, particularly in the Eastern Mediterranean. In addition to these territorial disputes, tensions have also flared over Greece's plans for maritime spatial planning, which involve delineating zones for different uses such as fishing, energy exploration, and shipping routes. These plans are part of a larger effort to manage resources sustainably and ensure compliance with international regulations. The proposed Greece-Cyprus-Israel electricity interconnection, known as the GSI, has also become a flashpoint in bilateral relations. Earlier in the day, Greek Foreign Minister George Gerapetritis reaffirmed that Greece would not seek Turkey's approval for the GSI project, signaling a firm stance on national sovereignty and regional cooperation. The deployment of Greek naval forces and the issuance of the counter-Navtex underscore the growing militarization of the Aegean and Eastern Mediterranean. Both countries have been increasing their naval presence in recent years, with each side accusing the other of encroaching on sovereign waters and undermining regional stability. The situation is further complicated by overlapping EEZ claims and the potential for resource exploitation in the region, including gas reserves discovered in the Levant Basin. Greek authorities have reiterated their commitment to resolving disputes through legal channels and adherence to international law. However, the current actions by both sides suggest that diplomatic efforts may be insufficient to prevent further incidents. The involvement of the Hellenic Coast Guard and the Greek navy indicates a readiness to respond forcefully to perceived provocations, raising concerns about the risk of direct confrontations in the region. As the situation unfolds, observers are watching closely to see whether the latest developments will lead to increased dialogue or further escalation. The Greek government has made it clear that it will continue to pursue its strategic interests independently, while maintaining open lines of communication with regional partners. Meanwhile, the Turkish research vessel continues its operations in the disputed waters, with Greek authorities keeping a close watch on its activities.