A series of reported drone attacks on merchant ships near Romania and Bulgaria prompted requests for stronger air defences and closer Black Sea coordination. Bulgaria asked NATO for aircraft and counter-drone capabilities; Romania reported shooting down two drones near Sulina on October 17 and proposed a joint regional command. The reported number of vessels hit and sailors missing varies across accounts, and some response measures were still proposals or expectations.
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What happened: a short timeline
- October 5–6: A maritime-security report described three commercial vessels attacked by aerial and surface systems in the Romanian and Bulgarian exclusive economic zones, with two vessels sinking.
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- October 13: Bulgaria said the cargo ship HS Dignity sank about 17 nautical miles east of Krapets. The Chelsea 3 was hit near Byala, and its 15 crew members were rescued, according to reporting from the incident.
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- October 14: The tanker Yara J caught fire about 9–10 nautical miles from Sulina amid suspected drone activity. Romanian authorities were investigating a possible drone attack.
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- October 15: The chemical tanker Wine Trader caught fire about 13 nautical miles southeast of Sulina after a reported drone strike. Five crew members were rescued, and seven were reported missing.
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- October 17: Romania said its F-16s shot down two drones over its territorial waters near Sulina. An incident report identified them as jet-powered Geran-family drones.
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The overall toll remains inconsistent in the supplied reporting. One account described at least seven ships attacked, two deaths and at least 25 missing; another reported 28 missing. A separate account said at least eight ships had been attacked over the preceding month. These figures use different reporting periods and should not be treated as one settled tally.
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Bulgaria: NATO requests and counter-drone plans
On October 16, Bulgaria asked NATO to strengthen its capabilities in the region. Its request included aircraft, anti-aircraft missile systems, anti-drone systems and maritime patrol aviation; at the time, the country was awaiting a decision on what support allies could provide.
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Two days later, Defence Minister Dimitar Stoyanov said allied aircraft were expected to arrive in Bulgaria. That was an expectation, not confirmation that aircraft had already been deployed.
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Bulgaria also outlined two separate counter-drone efforts:
- It committed €80 million through the EU’s SAFE mechanism to acquire 20 systems—10 mobile and 10 stationary—as part of NATO’s Drone Edge initiative.
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- It planned to join a separate NATO project focused on low-altitude aerial threats by October 30. The planned participation should not be confused with the Drone Edge commitment.
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Bulgaria also summoned Russia’s ambassador after the sinking of HS Dignity. That diplomatic step was not, by itself, a finding about who carried out the attacks.
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Romania: interception, investigation and a proposed command
Romania’s reported October 17 interception was a direct military response to drones entering its airspace: F-16s shot down two over Romanian territorial waters near Sulina.
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55 A separate report mentions an earlier Romanian interception near the Neptun Deep gas platform in August. That was a distinct incident, not part of October’s merchant-ship timeline.
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Romania also sought broader coordination. A North Atlantic Council meeting on Black Sea security was scheduled for October 20 at Romania’s initiative; a scheduled meeting should not be mistaken for a decision already taken.
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Separately, Romania proposed a joint NATO Black Sea command involving the region’s allied coastal states, with Romania offering to host it from 2028. This remained a proposal in the cited reporting, not an approved NATO structure.
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NATO coordination, attribution and what remains unsettled
Bulgaria, Romania and Türkiye raised the attacks with NATO and called for greater attention and joint support for Black Sea security. NATO Secretary General Mark Rutte said the alliance would continue working with its Black Sea allies and adjust its deterrence and defence posture as needed.
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Attribution was not uniformly presented in the reporting. A NATO military source told MarineLink that the drones behind the tanker fires were Russian in origin, while Romanian President Nicușor Dan declined to say whether Russia was responsible at that point. Romania was also reported to have investigated the possible attack on Yara J.
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12 These reports do not establish a single, final public finding covering every vessel attack.
The October 20 North Atlantic Council meeting is not itself evidence that NATO invoked Article 4 or Article 5. One report said Romania had not requested Article 4 consultations and that Article 5 was not then under discussion; the supplied reporting does not settle the legal question of how collective-defence provisions might apply to particular incidents, including those in an exclusive economic zone.
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Finally, the reporting cited here does not quantify changes to shipping insurance costs or establish the extent of any disruption to deliveries at Bulgarian ports. Those effects should not be stated as confirmed without better-documented figures.