An explosion near the Russian-flagged support ship NEFRIT in Sochi on Sept. 3 followed a Ukrainian unmanned-vessel attack, Ukraine’s Navy said, while Bloomberg linked the ship to oil-export mooring work.
The Navy said the explosion sent smoke near the vessel. It described NEFRIT as a multipurpose support ship whose duties included underwater technical work, service for offshore facilities, and moving cargo and personnel for oil and gas operations. The Navy called the attack “a blow to the enemy’s logistics, special capabilities and military-economic infrastructure.”
Footage reviewed by The War Zone captured an explosion at the port, but the publication said image quality did not show NEFRIT’s condition. It also reported a separate video of a sea drone being destroyed before it reached a target.
A person familiar with NEFRIT’s work told Bloomberg the vessel was nearing completion at one Caspian Pipeline Consortium (CPC) offshore mooring and had equipment replacement scheduled at another. Bloomberg reported that CPC did not comment on contractors’ ongoing work. The moorings are part of the consortium’s Black Sea terminal, Bloomberg reported.
Bloomberg’s account did not establish that the strike delayed maintenance or interrupted oil loading. The Navy described NEFRIT’s support functions but did not quantify the vessel’s contribution to energy operations.
The Institute for the Study of War (ISW) linked the Sochi attack to a broader Ukrainian unmanned-vessel campaign, which it assessed as constraining Russian Black Sea Fleet operations. The reporting describes a strike and a wider campaign, but does not establish a formal Black Sea blockade.
The War Zone cited Ukraine’s 2023 sea-drone attack on the Russian landing ship Olenegorsky Gornyak near Novorossiysk as an earlier long-range operation. Its account placed the Sochi strike within Ukraine’s broader use of unmanned vessels at sea.
