In a significant operation, Royal Marine Commandos successfully interdicted a Russian 'shadow fleet' oil tanker in the English Channel on June 14, 2026. Defence Secretary Dan Jarvis MBE MP confirmed the details in an oral statement to Parliament, highlighting it as the first such UK-led action against vessels suspected of circumventing sanctions.
The operation unfolded in the early hours, approximately 25 miles south of the Isle of Wight. Royal Marines fast-roped onto the deck of the 244-metre-long oil tanker, SMYRTOS, which was travelling at 10 knots. Control of the vessel was secured within minutes without resistance. This complex six-hour mission involved close collaboration with specialist officers from the National Crime Agency and was supported by an array of military assets, including Chinook, Merlin Mk4, and Wildcat helicopters, an RAF P-8 maritime patrol aircraft, the Type 23 frigate HMS Sutherland, and the minehunter HMS Ledbury. The Home Office’s Border Security Command Maritime teams also played a crucial role.
Mr Jarvis confirmed that all military and law enforcement personnel involved are safely accounted for. The SMYRTOS is currently secured outside port limits at Weymouth anchorage. A 38-year-old Indian national has been arrested on suspicion of suspected sanctions offences, while the remaining 24 crew members are assisting the National Crime Agency with their ongoing criminal investigation. Further updates are expected as the investigation progresses.
The Defence Secretary explained that UK Armed Forces, with support from allies including France, had closely tracked and monitored the vessel in the days leading up to the interdiction. The SMYRTOS was suspected of operating under a false flag, sailing without recognised nationality, and transporting sanctioned Russian oil. Mr Jarvis assured Parliament that the operation was conducted in full accordance with international law, including the United Nations Convention on the Law of the Sea, and relevant domestic legislation.
This interdiction follows the Prime Minister's declaration in March of the UK's intention to interdict 'shadow fleet' vessels at a time and place of its choosing. The government believes this stance has already had a deterrent effect, forcing many such vessels to take longer and more costly routes to avoid detection by the UK and its allies. The operation underscores the UK's commitment to enforcing international sanctions and disrupting illicit maritime activities that undermine global stability.