More than 570 commercial vessels have been attacked in the Black Sea since the start of 2026, with at least 40 seafarers killed, according to data compiled by maritime security firm Ambrey and the International Maritime Organization and reported by the Financial Times on October 25. The figures make the Black Sea the world’s deadliest trade route this year, surpassing the Strait of Hormuz, where 24 sailor deaths have been confirmed over the same period.
The toll reflects an escalation of Russia’s war against Ukraine that has increasingly drawn vessels and insurers far from the immediate conflict zone, with October attacks extending to tankers off Romania and Bulgaria, both NATO members. War-risk insurance premiums for ships entering high-risk Black Sea waters have climbed to as much as 15 percent of a vessel’s hull value, roughly double comparable Persian Gulf rates, the FT reported.
Attacks Surge Fivefold Since Summer
The Black Sea has been classified a dangerous shipping region since Russia’s full-scale invasion of Ukraine in 2022, when mines were first laid in its waters. A UN- and Turkey-brokered grain export deal temporarily eased the risk before Russia withdrew from it in 2023, after which attacks on Ukrainian ports resumed and intensified.
Ambrey data cited by the FT show roughly 387 vessels were struck between July and September, more than five times the total of the previous quarter, with attacks averaging over four a day. The security firm estimates Russia was responsible for about 90 percent of attacks on shipping over the past 45 days, though Ukraine’s own summer campaign against Russia’s shadow fleet tankers, in which Kyiv claimed to have hit more than 300 vessels in eleven weeks, also drove the spike before slowing in recent months.
Violence Spills Into Romanian and Bulgarian Waters
Strikes have increasingly moved beyond Ukrainian and Russian coastal waters into areas off NATO members Romania and Bulgaria. On October 23 a tanker was struck near Romania’s coast, killing one sailor and leaving three others missing, while drones hit two chemical tankers, identified as Wine Trader and Yara J, near Romania on October 15.
Romanian President Nicusor Dan has accused Russia of escalating the war closer to NATO’s borders, and the FT reported that NATO and the European Union are moving to strengthen shipping security in the region. Analysts cited in the report described a constant threat to the lives of crews transiting the area, regardless of flag or cargo.
Grain Exports and Insurance Costs Absorb the Impact
The escalation has hit Ukraine’s Greater Odesa port cluster hard: port operator TIS reported fewer than ten vessels called last month compared with roughly 400 in July. Seaborne agricultural shipments fell to about 1.4 million tonnes in August, roughly 75 percent below prewar volumes, while ongoing port strikes have complicated efforts to reroute cargo via the Danube.
Rising war-risk premiums have pushed some operators to abandon Black Sea routes altogether, while others are deploying older tonnage, some vessels reportedly up to 50 years old, to offset insurance costs. The FT noted that reporting of attacks in both the Black Sea and the Persian Gulf remains patchy, making the true scale of the danger difficult to establish with precision.
Why it matters
The Black Sea remains a critical corridor for grain, fertilizer and energy cargoes moving from Ukraine, Russia and neighboring states to global markets, and the surge in attacks and insurance costs threatens to further squeeze Ukraine’s wartime export lifeline. Strikes extending into Romanian and Bulgarian waters raise the prospect of direct NATO exposure to the conflict’s maritime dimension, adding pressure for an alliance or EU security response. For shipowners and charterers, doubled war-risk premiums and shrinking fleets willing to serve the route signal higher freight costs and tighter capacity for Black Sea-dependent grain and chemical cargoes heading into 2027.
Source: UNITED24 Media
