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Drone sinks ship off Bulgaria’s Black Sea coast, prime minister says

By Thomson Reuters Oct 13, 2026 | 12:27 AM

(Corrects to remove “Ukrainian-owned” from headline and makes clear in second paragraph that the Ukrainian ship was damaged, not sunk.)

SOFIA, Oct ​13 – Two ships were hit by ‌drones off Bulgaria’s Black Sea coast and one of them sank, in the second such incident in a week, Prime Minister Rumen Radev said on Tuesday.

The Ukrainian-owned “Chelsea 3”, ‌sailing ​under Maltese flag, was hit ⁠by three drones and ⁠damaged some 18 nautical miles (33 km) off the Bulgaria coast around 1:30 a.m. (2230 GMT), Radev said. Its crew – seven Ukrainians and eight Azerbaijanis – ​had been rescued. Five crew members received medical assistance, but no one was seriously injured.

One ⁠crew member of the ⁠sunken ship had also been rescued, Radev ​said.

“This is absolutely unacceptable — another attack in the immediate ​vicinity of Bulgarian territorial waters,” Radev said ‌in a televised address.

“I am due to speak with NATO Secretary General Mark Rutte.”

Radev said there was no clear evidence who carried out ⁠the attack but “the outcome benefits the Russian Federation”, adding that he would summon the Russian ambassador about the incident.

Bulgaria ⁠does not ‌border either Ukraine or Russia, but ⁠as a NATO member it holds ​a ‌strategic position on the Black Sea, ​where both ⁠countries have major ports. There are growing concerns about hybrid attacks involving drones by Russia as it wages war in Ukraine.

(Reporting by Alex Lefkowitz and Ivana Sekularac; Editing by Tom Hogue and ​Lincoln Feast.)