Overview
- British Royal Marine commandos and National Crime Agency officers boarded the Cameroon‑flagged tanker Smyrtos in a six‑hour operation on Sunday, supported by HMS Sutherland, HMS Ledbury, Chinook and Merlin helicopters and an RAF P‑8 patrol plane.
- The Ministry of Defence said the action was taken under Article 110 of the UN Convention on the Law of the Sea and UK sanctions law and was conducted in close coordination with French authorities.
- The Smyrtos was provisionally moved to an anchorage off England’s south coast where it is being monitored for environmental, safety and investigative purposes while authorities inspect the vessel and paperwork.
- UK officials framed the interdiction as part of a wider campaign against the so‑called shadow fleet, a network of some 700 ageing tankers that the government says carries roughly three‑quarters of Russia’s sanctioned oil, and said the UK has sanctioned nearly 600 such ships.
- The seizure follows a March decision by Prime Minister Keir Starmer to authorise forcible boardings and comes as the government faces defence funding debates and may prompt further allied interdictions and legislative steps to tighten enforcement.