Bulgaria’s prime minister condemned a drone attack on two commercial vessels in the Black Sea’s exclusive economic zone on October 6, 2026, as a flagrant violation of maritime law, while Ukraine’s president accused Russia of orchestrating the strikes.
Bulgarian Prime Minister Rumen Radev described the attack as an unacceptable attack in Bulgaria’s exclusive economic zone,
citing sea and aerial drones targeting two merchant vessels about 70 nautical miles east of Varna. The Togo-flagged Alfa Watan sank, with its crew’s fate unknown, while the Palau-flagged Able caught fire and was partially salvaged, with 18 crew members rescued. Radev called for an investigation but stopped short of assigning blame, stating, We have yet to try to establish where the attack came from, but it is clear: they are either Russian or Ukrainian.
The attack occurred 70 nautical miles east of the coastal town of Byala, according to Bulgarian broadcaster Nova, marking the first reported drone strike on commercial shipping within Bulgaria’s exclusive economic zone.
https://x.com/ZelenskyyUa/status/2107089741183172662
International Condemnation and Geopolitical Tensions
The European Union’s Ursula von der Leyen condemned the strikes as increasingly concerning,
warning that attacks on civilian shipping risk destabilizing global trade. In a post on X, she stated, Attacks on civilian shipping are unacceptable.
Ukrainian President Volodymyr Zelenskyy, speaking in a nightly address, claimed a joint investigation with Bulgaria’s navy confirmed a Russian combined attack using both sea and aerial drones.
He reiterated that the Ukrainian Defence Forces were conducting no operations in this part of the sea,
and accused Russia of seeking to make the western Black Sea completely unfit for navigation.
Russian President Vladimir Putin has repeatedly denied targeting civilian ships, stating, We have no intention of attacking anyone… but if we are subjected to aggression, we will have no choice but to respond.
Swedish Prime Minister Ulf Kristersson highlighted the importance of Sweden’s contribution, saying, This strengthens the security of NATO, Europe and Sweden.
Polish Prime Minister Donald Tusk warned of “hybrid attacks” by Russia against NATO allies, citing intelligence reports of planned drone and missile strikes.
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Legal and Environmental Implications
Legal experts highlighted the ambiguity of the attack’s legality under international law. Bulgaria’s EEZ extends 200 nautical miles from its coast, but the incident occurred beyond the 12-nautical-mile territorial limit, where waters and airspace retain international status. Novinite, a Bulgarian outlet, noted that while the attack did not directly violate Bulgaria’s sovereignty, it raised concerns about the protection of the marine environment and management of resources.
The sinking of the Alfa Watan, which carried an undisclosed cargo, has also sparked fears of oil spills and ecological damage, with Bulgarian authorities monitoring for environmental threats.
The incident has intensified debates over the use of flags of convenience
by shipowners, which allow vessels to register in jurisdictions with lax regulations. The Alfa Watan and Able, flying Togo and Palau flags, exemplify this practice, complicating efforts to trace ownership and accountability. Such systems can also make it possible to conceal the ultimate beneficial owner of a vessel through offshore structures,
noted Novinite.
Unanswered Questions and Future Risks
Key questions remain unresolved. Bulgaria has not yet determined the origin of the drones, and no country has officially claimed responsibility. The attack’s broader implications for NATO’s eastern flank are unclear, though analysts warn of a potential geographic expansion
of hybrid warfare. Ukrainian officials have called for increased coordination with allies to counter Russian drone campaigns, while Poland announced a $26.4 billion civil defense plan to bolster infrastructure near the Ukrainian border. Prime Minister Donald Tusk stated that the program would include protecting the Lublin region and Lublin airport,
as well as funding for warning systems and ICT security.
As the investigation continues, the incident highlights the growing risks to commercial shipping in the Black Sea. With Russia accused of targeting vessels to disrupt Ukrainian grain exports and pressure NATO allies, the region’s stability hangs in the balance. If this war is not halted in time, it will continue to expand its geographical reach,
Radev warned, echoing concerns about a wider conflict. The attacks have also reignited debates about the effectiveness of sanctions, with EU envoys expected to approve 1,650 new designations against Russian entities, focusing on its military industrial complex.
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