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Drone attacks on ships off Romania put Black Sea grain lifeline at risk
Three cargo vessels headed for Ukrainian ports were targeted by drones off Romania’s coast near Sulina, widening the war’s reach into a critical Black Sea–Danube shipping corridor. The strikes raise fresh questions for shipowners, insurers, and governments that rely on Ukrainian exports moving through what had been a relative safe lane.
The fragile maritime corridor feeding Ukraine’s economy and global markets has taken another hit, this time at the doorstep of NATO territory.
Over the past two days, three commercial vessels were targeted by drone attacks off the Romanian coast, near the port of Sulina, according to shipping reports. The Greek-flagged tanker EVIAPETROL V and the St. Kitts and Nevis-flagged bulk carrier MARSOL were struck while anchored near Sulina and preparing to travel along the Danube toward Ukrainian ports. A day earlier, the Palau-flagged cargo ship Larissa 1 was also attacked in the same general area.
Details on the extent of damage, casualties, or any pollution have not yet been made public. There was no immediate claim of responsibility in the available reporting, and official statements from Romania or NATO were not cited. What is clear is that the attacks targeted vessels involved in the Danube route that has become essential for Ukrainian exports following heavy Russian pressure on Black Sea shipping.
For seafarers and crews on these ships, the risk is personal and immediate. Drone attacks give little warning, and anchored vessels have almost no maneuvering room. Even near a NATO coast, crews now face the kind of threat more often associated with contested zones further east. Shipowners must weigh the safety of crews against the commercial need to keep cargo moving to and from Ukrainian ports.
Operators and insurers will be running new calculations. Premiums on voyages into Ukrainian waters have already been elevated since Russia began striking port infrastructure. Drone strikes near Sulina — long used as a staging point precisely because it sits in Romania’s territorial orbit — complicate risk models. Underwriters now have to consider that even ostensibly safer anchorages on the western Black Sea edge may fall within range of hostile unmanned systems.
Strategically, the attacks test the robustness of the alternative export channels that Kyiv and its partners have painstakingly built. With large parts of Ukraine’s deep-water Black Sea access constrained, traffic through the Danube delta has grown in importance, carrying grain, fuel, and other commodities. Drones striking ships poised to move along that riverine artery threaten not just Ukrainian agricultural revenues but also import flows of fertilizer, fuel, and industrial goods into Ukraine.
The pressure extends beyond Ukraine. Countries dependent on Ukrainian grain — in the Middle East, North Africa, and parts of Asia — have a direct interest in seeing Danube and Black Sea routes remain viable. European states along the Danube and in the Black Sea basin also depend on predictable traffic for their own ports and logistics chains.
The pattern fits a broader trend of Ukraine’s war spilling into critical infrastructure and chokepoints. Recent Russian strikes have repeatedly targeted Ukrainian ports and energy facilities, while Ukraine has carried out long-range attacks on Russian refineries and airbases deep inside Russian territory. Each new hit on a logistics node or shipping lane makes commercial decisions harder and public pressure on governments higher.
For global trade, the lesson is sobering: a handful of drones off a single coastal town can upend the planning assumptions of entire shipping sectors when that town sits on a chokepoint tied to a major exporter.
The key signals to track now are any formal attribution by Romania, Ukraine, or NATO; changes to navigational warnings or routing guidance for ships using Sulina and the Danube corridor; and whether insurers impose new restrictions or surcharges on calls to the western Black Sea. A decision by major operators to pause or reroute traffic away from the area would mark a significant escalation in the economic fallout.