Bulgaria Halts Search for Missing Sailors After Black Sea Drone Strike Sinks Cargo Ship

Bulgarian maritime authorities have called off the search for crew members missing after a drone attack sank a commercial cargo ship in the Black Sea, concluding that no survivors would be found. The decision, announced on Wednesday, brings a grim end to a rescue effort that had been underway since the vessels were struck early Tuesday morning.

Rumen Nikolov, who heads Bulgaria's Maritime Search and Rescue Coordination Centre, confirmed to reporters that the operation had been terminated. "There is no trace of the sailors," he said, adding that the search was suspended late Tuesday and would not resume.

The attack targeted two commercial vessels in quick succession. One ship caught fire after being hit, while the other sank beneath the waves. Eighteen crew members—described as Turkish and Indian nationals—were pulled from the burning vessel and brought to safety. However, those aboard the ship that went down remain unaccounted for.

Authorities have not officially disclosed how many people were on the sunken vessel, but the specialized maritime news website Maritime.bg reported that ten individuals were aboard at the time of the strike. That figure, if confirmed, would represent a significant loss of life in an incident that has drawn sharp condemnation from both Bulgarian and European Union officials.

According to Nikolov, the distress beacon from the sunken ship was received at 2:54am local time on Tuesday, equivalent to 23:54 GMT on Monday. A second distress signal, from the vessel that caught fire, came through approximately half an hour later, at 3:23am local time (00:23 GMT). The timing suggests the attacks occurred within a narrow window during the pre-dawn hours.

The location of the strikes has raised questions about the scope of the threat to commercial shipping in the region. Nikolov noted that the incident took place in what is designated a "responsible search and rescue zone," rather than within Bulgaria's territorial waters, which extend 12 nautical miles from the coast. The vessels were approximately 80 nautical miles, or roughly 150 kilometers, east of the coastal town of Byala when they were hit.

What remains of the sunken ship offers little hope. Nikolov described the debris recovered from the surface: "What was found from the sunken ship was one overturned boat, three life rafts and debris from the ship's equipment that was floating on the surface of the sea." When asked whether any fragments from the drones themselves had been retrieved, he stated plainly, "I have no information about drone debris."

Both commercial vessels were managed by companies based in Turkey, according to the Equasis merchant shipping database, a publicly accessible registry of ship and company information. The involvement of Turkish-operated vessels adds a diplomatic dimension to an already tense situation in the Black Sea region.

Bulgarian Prime Minister Rumen Radev described the attack as "absolutely unacceptable," signaling the government's outrage at the strike on commercial shipping. European Commission President Ursula von der Leyen also issued a condemnation, underscoring the EU's concern about escalating threats to maritime traffic in waters adjacent to its member states.

Despite the strong reactions, Bulgarian authorities have said they are not yet in a position to determine where the drones originated. The question of attribution remains unresolved, though the incident fits a pattern of increasing attacks on Black Sea shipping amid the intensifying Russia-Ukraine war.

The strikes came just one day after another ship caught fire and sank off the coast of Romania on Monday, resulting in two deaths. In that incident, Ukraine blamed Russia for a drone attack. The proximity of the two events—both involving merchant vessels in the Black Sea and both attributed to drone strikes—suggests a widening theater of maritime risk that now extends beyond the immediate conflict zone.

The Black Sea has become an increasingly dangerous corridor for commercial shipping since the full-scale invasion of Ukraine. Drone warfare has expanded rapidly, with unmanned aerial and naval systems playing a prominent role in strikes against vessels and port infrastructure. The attack on Tuesday marks one of the most serious incidents to date involving civilian cargo ships in waters near NATO and EU member states.

For Bulgaria, the incident raises difficult questions about maritime security and the adequacy of search and rescue capabilities in international waters. The fact that the strike occurred outside Bulgaria's territorial waters but within its search and rescue responsibility zone highlights the complex legal and operational challenges posed by modern drone warfare.

The rescue of 18 crew members from the burning ship stands as the sole positive outcome of an otherwise devastating event. Their nationalities—Turkish and Indian—reflect the multinational character of commercial shipping crews, who often find themselves in harm's way far from home. The missing sailors from the sunken vessel, meanwhile, remain lost at sea, their fate now all but sealed as Bulgarian authorities formally end their search.

As the Black Sea grows more perilous by the day, the international community faces mounting pressure to address the safety of civilian mariners who navigate these contested waters. For now, however, the focus remains on the ten souls believed lost and the unanswered question of who launched the drones that sank their ship.