Sign in Get in touch
World risk · Supply chains and chokepoints · Russia, Ukraine & NATO

Drone strikes on merchant ships off Bulgaria and Romania

The test Between 26 Oct 2026 and 25 Oct 2027, a drone or missile strikes a merchant ship inside the territorial sea or exclusive economic zone (EEZ) of Bulgaria or Romania, as reported by that country's government.

Not under way · Confidence: medium · Reviewed 25 Oct 2026 · Scores from 1 to 10

This page answers: What could happen, how it is scored, and who is exposed?

Using this page
  1. Read the two scores: Likelihood and Impact are kept apart.
  2. Check what is happening, each fact with its source.
  3. Use the calendar for the dates to watch.

Follow this riskSign in to follow; one weekly email if you ask for it.

Likelihood
5Elevated rising this month

Likelihood ↑ Since 5 Oct 2026: five merchant ships hit in three attacks in nine days (5, 6 and 13 Oct); Bulgaria reported drone strikes on 6 and 13 Oct.

Impact
4Elevated steady this month
Breadth5
Depth2
Duration4
Hard to substitute4
Canada pointNot added0

Impact is the average of the four parts, rounded, plus one point when Canada is directly hit on two or more channels, up to 10.

Two separate scales from 1 to 10. Strature never multiplies or merges them.

What changed

Dated, newest first

  1. 13 Oct 2026: HS Dignity (Guinea-Bissau) sank off Krapets, five rescued, 11 missing; Chelsea 3 (Malta, Ukrainian-operated) hit by three drones, 15 crew evacuated [5]
  2. Radev: no clear evidence of the attacker, outcome benefits Russia; seeks NATO and EU help and talks with Romania and Turkey; Ukraine's foreign minister blamed Russia; Russian ambassador did not rule out a third-party provocation [6]
  3. Insurance for a Black Sea oil cargo rose from about US$200,000 to US$2.5m per vessel (Lukoil manager in Bulgaria) [8]
  4. Search for the sunken ship's crew (10 aboard per Maritime.bg) ended with no survivors; site about 80 nm east of Byala [3]
  5. 6 Oct 2026: drones hit two ships about 70 nm off Byala in Bulgaria's EEZ (Radev); Alfa Watan (Togo) sank; 18 crew of Able (Palau) rescued [4]
  6. Joint War Committee extended the Black Sea listed area to the whole sea, except territorial waters of coastal states other than Russia and Ukraine, on 16 Sep 2026; insurers can cancel war cover and reinstate it at a higher premium [4]
Show 3 earlier changes
  1. Royad Mammadov (St Kitts and Nevis flag), corn from Izmail to Ravenna, sank in Romania's EEZ on 5 Oct 2026; two dead, 11 rescued; Romania named no cause [1]
  2. Zelensky blamed two Russian drones; Russia's defence ministry bulletin said it struck two cargo vessels, without linking them to this ship [2]
  3. 2025 average prices: maize US$203.2/t, wheat US HRW US$243.3/t [13]

Why it matters

A ship Ukraine says Russian drones hit sank in Romania's EEZ on 5 Oct (Romania named no cause); Bulgaria reported drone strikes on 6 and 13 Oct. Five merchant ships were hit in three attacks in nine days; three sank, two sailors died and 21 are missing. Bulgaria has not named the attacker; Ukraine blames Russia. London insurers list the whole Black Sea except the territorial waters of coastal states other than Russia and Ukraine.

Why Likelihood 5 Pushes: five ships hit in three attacks in nine days, both sides strike shipping, southbound Danube traffic passes Romania's EEZ (Strature's view). Brakes: diplomatic cost and NATO posture, routing into exempt territorial waters, attribution unproven.

Why Impact 4 Threshold case: one more ship hit in an EU EEZ. One region and a key good (grain); months (war cover cancelled and reinstated at higher premiums, priced per seven-day voyage); territorial-water routing, Danube and rail.

The other facts on file (3)
  • Russia's defence ministry said it hit four vessels carrying cargo for Ukraine's forces; Ukraine said it hit 20 Russian vessels overnight [9] (15 Jul 2026)
  • Ukraine exported 50.7 Mt in Jan-Jun 2026, about 34 Mt via Greater Odesa; no corridor resumption reported as of 29 Jul; Danube costs about US$20-30/t more than Odesa [10] (30 Jul 2026)
  • Corridor carried over 200 Mt (118 Mt grain) since Sep 2023; Danube ports over 8.9 Mt in 2025 (GMK Center) [11] (4 Jun 2026)

Where it sits

11. Drone strikes on merchant ships off Bulgaria and Romania: Elevated impact · possible1 · Elevated impact · possibleMoscowKyivWarsawAUSTRIABULGARIABELARUSCZECH REPUBLICGERMANYESTONIAFINLANDHUNGARYITALYKAZAKHSTANLITHUANIALATVIANORWAYPOLANDROMANIARUSSIASERBIASWEDENUKRAINEUZBEKISTANBLACK SEA0500 kmat 52°NMap data: Natural Earth (public domain).
11. Drone strikes on merchant ships off Bulgaria and Romania: Elevated impact · possibleMoscowKyivAUSTRIABULGARIABELARUSCZECH REPUBLICESTONIAFINLANDHUNGARYLITHUANIALATVIAPOLANDROMANIARUSSIASERBIASWEDENUKRAINE0300 kmat 52°NMap data: Natural Earth (public domain).

How it spreads

If

Between 26 Oct 2026 and 25 Oct 2027, a drone or missile strikes a merchant ship inside the territorial sea or exclusive economic zone (EEZ) of Bulgaria or Romania, as reported by that country's government.

Not under way

Channels 5 on the card

  1. CanadaNo direct Canadian loss sourced; any effect on Canadian wheat would be a gain.
  2. Shipping costsUnderwriters price voyages near Bulgarian and Romanian coasts closer to listed-area rates.
  3. Danube and grain tradeSouthbound ships from Izmail and other Danube ports pass Romania's EEZ (Strature's view); Danube ports handled over 8.9 Mt in 2025 (GMK Center) [11].
  4. EnergyHigher war-risk premiums raise the cost of crude delivered by sea; Strature gives no view on any company or on trade with sanctioned parties.
  5. NATO and the EUBulgaria seeks NATO and EU help and joint shipping-safety proposals with Romania and Turkey.

Sectors 4

  • Ports and logistics
  • Banks and insurers
  • Agriculture and food
  • Energy and pipelines

Countries 9

Who is exposed

Countries
Bulgaria, Romania, Ukraine, Turkey, Azerbaijan, India
Sectors
Ports and logistics, Banks and insurers, Agriculture and food, Energy and pipelines
Goods
Wheat, Crude oil

Three scenarios and their signposts

  1. S1

    Strikes go on

    Further hits in EU EEZs while the war continues.

  2. S2

    Ships hug the coast

    Traffic shifts into territorial waters exempt from the listed area, and strikes there stop.

  3. S3

    Escalation at sea

    A strike inside Bulgarian or Romanian territorial waters or a port.

The signposts of each scenario
PathSignpost
S1a fourth attack in Bulgarian or Romanian waters before 31 Dec 2026
S2no new hit in an EU EEZ for three months, to 31 Jan 2027
S3a NATO or EU naval escort mission agreed for the western Black Sea

No probability is given for the three paths.

Dates to watch

Calendar

The dates to watch

A dot is a day, a bar a month or a year; a hollow mark is tentative. The line marks today.

  1. Dec 2026 Burgas refinery's secured crude supplies run out unless renewed (early December) [8] Tentative · Window
  2. 17 Dec 2026 European Council, 17-18 Dec (Ukraine on the agenda of each meeting) [12] Declared · Outside event

    Remind me

  3. 31 Jan 2027 Three months without a hit in an EU EEZ (scenario signpost) Tentative · Strature date

    Remind me

Sign in, with alerts on, for an email 7 days and 1 day before.

SourceStrature world-risk card; the dates cite the sources below.
Exhibit R-3 · WORLD · strature.net

The other side

Bulgarian and Romanian territorial waters stay outside the insurers' listed area, so coastal routing keeps a lower-cost lane open (Strature's view); Bulgaria, Romania and Turkey are to discuss joint shipping-safety proposals, which may bring mine and drone countermeasures that outlast this war (Strature's view).

Connected in Strature

Sources

12 sources, numbered as the text cites them

  1. Ukraine says Russian drone attack sinks ship in Romanian waters. Al Jazeera · 5 Oct 2026 · News · confidence high · retrieved 25 Oct 2026
  2. Ukraine blames Russian drones after fire sinks ship in Black Sea leaving two dead. Baird Maritime (Reuters) · 5 Oct 2026 · News · confidence high · retrieved 25 Oct 2026
  3. Bulgaria ends search for missing crew after drone strike sinks cargo ship. Al Jazeera · 7 Oct 2026 · News · confidence high · retrieved 25 Oct 2026
  4. Black Sea drone attacks on ships raise marine insurance risks. Beinsure · 6 Oct 2026 · Industry · confidence medium · retrieved 25 Oct 2026
  5. Drone attack sinks ship off Bulgaria's Black Sea coast, PM says. Al Jazeera · 13 Oct 2026 · News · confidence high · retrieved 25 Oct 2026
  6. Drones hit ships in Black Sea, sinking 1, prompting rescue operations, Bulgaria says. AP via ABC News · 13 Oct 2026 · News · confidence high · retrieved 25 Oct 2026
  7. Black Sea oil shipping insurance costs surge to $2.5 million. OilPrice.com · 12 Oct 2026 · News · confidence medium · retrieved 25 Oct 2026
  8. Russian attack on Odesa kills 3 as Ukraine strikes ships in Black Sea. The Moscow Times (Reuters) · 15 Jul 2026 · News · confidence high · retrieved 25 Oct 2026
  9. No ship arrivals: how much does the idle time at Ukraine's seaports cost the country each day?. Dengi.ua · 30 Jul 2026 · News · confidence low · retrieved 25 Oct 2026
  10. Ukraine marks milestone as exports on sea corridor top 200 million tons. The Maritime Executive · 4 Jun 2026 · News · confidence medium · retrieved 25 Oct 2026
  11. Leaders' Agenda 2026. European Council (PDF via Eunews) · 2026-01 · Official · confidence high · retrieved 25 Oct 2026
  12. World Bank Commodities Price Data (The Pink Sheet), October 2026. World Bank · 2 Oct 2026 · Official · confidence high · retrieved 26 Oct 2026

Reviewed 25 Oct 2026 · version 1 · last change: reviewed · All risks