Drone Vessels Sink Container Ship off Bulgaria's Black Sea Coast

A container ship carrying 421 containers from Israel to Romania sank in the Black Sea after being struck by unmanned surface vessels off Bulgaria on October 28, 2026, Bulgarian authorities said. All 18 crew members were rescued, while the attack raised concerns about the expanding risks to commercial shipping from the Russia-Ukraine war.

The Greek-owned, Liberian-flagged Contship Jet was sailing from Haifa to Constanța when it was attacked within Bulgaria's exclusive economic zone, outside its territorial waters. The vessel sustained severe damage and sank, taking all 421 containers with it, according to reports from Globes and Ynetnews.

Bulgarian naval forces conducted the rescue, assisted by a French maritime patrol aircraft operating in the area, according to Bulgaria's defense minister, Dimitar Stoyanov, as reported by Globes. The crew comprised 14 Filipinos and four Ukrainians, who were transported safely to the Bulgarian port of Varna.

The attack occurred approximately 17 nautical miles off Bulgaria's coast near Varna, according to Globes. The ship had a capacity of 1,276 containers and operated on a shipping route connecting Israeli and Black Sea ports.

Bulgarian authorities said they had received advance warning but were unable to prevent the strike. Footage published by a Bulgarian news website showed an unmanned surface vessel approaching the ship shortly before impact, according to Ynetnews. Investigators have not established who was responsible or determined the motive, and initial assessments have not indicated that the vessel was targeted because of its Israeli commercial connection.

ZIM Integrated Shipping Services confirmed that it had chartered the ship but did not own it. The company said it was assessing the financial impact and arranging a replacement vessel to maintain service for customers.

"A small container ship, chartered by ZIM but not owned by the company, was hit by a drone in the Black Sea. All crew members were safely evacuated, and initial estimates suggest the financial damage is minimal. The company is working to secure a replacement vessel to ensure continued service to its customers. To our knowledge, several similar incidents involving ships have occurred in the region over the past month," ZIM said in a statement published by Globes.

The sinking came as Bulgaria, Romania and Turkey stepped up coordination on maritime security. Defense ministers from the three NATO member countries met in Sofia on October 28 and condemned attacks threatening commercial vessels, maritime infrastructure and freedom of navigation.

The ministers called on all parties to avoid further actions that could endanger shipping and emphasized compliance with international law, including the Montreux Convention. They also agreed to improve intelligence sharing, maritime surveillance and early-warning arrangements, according to Defense News.

Turkish Defense Minister Yaşar Güler said Turkey would maintain its existing implementation of the Montreux Convention. He described the safety of commercial shipping routes and the security of Black Sea coastal countries as essential priorities in the region's current conflict.

"I believe that the united and resolute position we have demonstrated here today, in full coordination and solidarity with our friends and allies Bulgaria and Romania, is important in clearly reminding both warring parties that the security of commercial shipping routes in the Black Sea and the safety of littoral countries constitute inviolable red lines," Güler said, according to Defense News.

Bulgarian Defense Minister Dimitar Stoyanov said the three countries would continue working together through their trilateral framework and NATO, coordinating closely with alliance members and partners. The next round of consultations is scheduled to take place in Ankara and Bucharest.

Maritime security figures cited by Defense News, drawing on data from maritime security company Ambrey and the International Maritime Organization, indicated that more than 570 vessels had been hit in the Black Sea since the beginning of 2026, with at least 40 seafarers killed. The same report recorded 24 deaths in the Strait of Hormuz area over the same period.

Ynetnews also reported that at least 45 merchant vessels had been attacked during the preceding 12 months in Black Sea areas not previously classified as high-risk zones. The figures underscore the growing exposure of commercial shipping routes serving regional and international trade, including supplies of grain and fertilizers.