In brief
On Wednesday, Oct. 28, 2026, a container ship was struck by three maritime drones east of Cape Kaliakra and sank around midnight. The 18‑person crew, composed of 14 Filipinos and 4 Ukrainians, were rescued by Bulgarian authorities. Environmental agencies are collecting seawater samples to assess potential pollution, while reports differ on whether the vessel carried lithium‑ion batteries or light fuel oil.
A container vessel hit by three maritime drones sank off Bulgaria’s Black Sea coast on Wednesday, Oct. 28, 2026, and all 18 crew members—14 Filipinos and 4 Ukrainians—were rescued by Bulgarian authorities and brought ashore in Varna.
The ship, identified as the CONTSHIP JET, was operating under the Liberian flag and was sailing within Bulgaria’s exclusive economic zone, about 21 nautical miles southeast of Shabla, when the drones struck. Bulgarian air defense officials said the drones reportedly launched from the east and did not enter the country’s territorial waters.
Admiral Emil Eftimov, Bulgaria’s outgoing Chief of Defence, told a bTV interview that the drone attack came from the east and that the Bulgarian Air Force was on alert. He added,
We are not at war. The drones did not enter territorial waters, so we did not take action.A before‑statement by Eftimov highlighted the country’s expanded intelligence and anti‑drone capabilities.
Following the sinking, Bulgarian maritime authorities conducted inspections of the sunken vessel. Maritime Administration Executive Agency teams inspected the hull and reported no significant harmful impact on the marine environment. The agency noted that the ship was carrying 421 containers of various cargoes, including light fuel oil (gas oil) that evaporates quickly, and the fuel is not expected to reach the Bulgarian coast.
However, other reports list the ship’s cargo as lithium‑ion batteries, and the cargo records are still under investigation. The two conflicting accounts highlight the uncertainty that continues to surround the incident.
In addition to the inspection, the Environment and Water Ministry announced plans for extensive seawater sampling. Teams from the Defence Ministry already collected samples from two sites in Bulgarian territorial waters and found no visible signs of pollution. On Thursday, the Ministry will collect seawater at five coastal locations—Durankulak, Shabla, Cape Kaliakra, Byala and Sozopol—to test for petroleum products, polychlorinated biphenyls, metals and other physicochemical indicators of water quality.
Samples will be analysed at the Executive Environment Agency’s regional laboratories in Varna and Burgas. Local officials said the sampling in the area around the wreck site will also take place, with results to be publicly released once complete.
Sea‑based monitoring remains active. Defence Minister Dimitar Stoyanov told reporters during a regional security meeting that “a container ship was hit…with three naval drones, approximately 21 miles southeast of Shabla.” The statement reflected the continued attention the government is giving to maritime security.
The incident is identified as the fifth drone attack against a vessel within Bulgaria’s EEZ since the beginning of October. Bulgarian officials confirmed that efforts are ongoing to assess environmental risks, with the agency ready to act if any pollution risk emerges.
The crew, who survived and were taken to medical facilities in Varna, have not yet shared personal accounts of the attack. The rescue operation was carried out by the local Coast Guard and naval forces, and the survivors are currently receiving standard post‑incident care.
Local fishing communities along the Black Sea coast have expressed concern about potential long‑term environmental effects, although the Environment Agency maintains that the expected impact is limited due to the swift evaporation of light fuel oil. The Samokov fishermen’s association has called for transparent updates on the sampling results, stating the importance of community oversight.
The incident underscores heightened tensions in the Black Sea, with various maritime incidents linked to the ongoing conflict between Russia and Ukraine. While the Bulgarian government emphasizes continuity of maritime commerce, it also remains vigilant about protecting its waters and coastal communities from potential contamination.
In the coming days, authorities are slated to publish the full analysis of the seawater samples. The results will provide a comprehensive assessment of whether pollution is present and whether changes in seawater quality are detectable beyond visual inspection alone.
