The Black Sea has become a new front for drone attacks after three commercial vessels were hit within the exclusive economic zones of NATO members. On October 6, two cargo ships – the Togo-flagged Alfa Watan and the Palau-flagged Able – were struck by a mix of sea-borne and aerial drones roughly 80 miles (128 km) off the Bulgarian coast. The Alfa Watan sank outright, while the Able caught fire and later required assistance from a Bulgarian ferry, which rescued all 18 crew members. Two sailors aboard the Able suffered severe injuries and were air-lifted to a hospital in Varna.
Earlier strike in Romania’s exclusive economic zone
The day before, on October 5, a Turkish-owned vessel named Royad Mammadov was hit by drones inside Romania’s exclusive economic zone. The attack ignited a blaze that ultimately sank the ship. Romanian authorities rescued 11 crew members – nationals of Azerbaijan and India – while one seafarer remained missing and two were confirmed dead. Romanian officials described the incident as an “unacceptable attack” and highlighted the loss of life.
Political fallout and attribution
Bulgarian Prime Minister Rumen Radev condemned the October 6 incidents, calling them “an unacceptable attack in Bulgaria’s exclusive economic zone” and “a blatant violation of international law and maritime law.” On the European level, EU President Ursula von der Leyen posted that the three drone strikes are “increasingly concerning” and stressed that “attacks on civilian shipping are unacceptable,” adding that the Union stands in full solidarity with its Eastern-flank members.
Ukraine’s President Volodymyr Zelenskyy backed a joint investigation with the Bulgarian navy, concluding that the October 6 attacks were a “Russian combined attack using both sea and aerial drones.” He also labeled the October 5 strike on the corn-carrying vessel as a “horrific” Russian action, noting that the ship’s captain was killed and another sailor remained unaccounted for. Zelenskyy urged the international community to apply pressure to restore global food security.
Hybrid warfare concerns across Europe
The Black Sea incidents fit a broader pattern of so-called hybrid warfare that European officials say is spilling over from the Ukraine conflict. Germany’s Chancellor Friedrich Merz warned that Germany is preparing for further hybrid attacks after an explosive-laden drone was found on the tarmac of Leipzig airport in August, close to Ukrainian cargo flights. German foreign intelligence chief Martin Jaeger echoed the warning, stating that Germany faces a real and imminent danger of becoming embroiled in a violent conflict with Russia.
These statements come amid a series of Russian-linked cyber and kinetic operations reported in Poland and the Baltic states, underscoring the growing complexity of security challenges on NATO’s eastern flank. The convergence of maritime drones, aerial threats, and cyber activities illustrates how hybrid warfare is reshaping defense postures throughout the region.
