UK boards a sanctioned tanker and designates 27 more shadow-fleet vessels
Royal Marines seize the 'Smyrtos' in the Channel days before a sanctions package hitting ships, insurers and procurement networks
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Summary
On 14 June 2026, Royal Marine Commandos and UK National Crime Agency officers boarded the Cameroon-flagged tanker Smyrtos in the English Channel, a vessel listed since October 2025 for moving sanctioned Russian oil. On 16 June the United Kingdom designated 11 individuals, 32 entities and 27 additional ships, plus insurers and shipping-service providers, under its Russia sanctions regime, alongside a new OFSI interdiction general licence. PM Starmer called it "another blow to Russia"; Zelensky thanked London. A Kremlin envoy dismissed the seizure as a distraction. Reports say at least two other sanctioned tankers diverted from the Channel afterward.
Why it matters
Physically interdicting Shadow Fleet tankers raises Russia's oil-export costs and marks a shift from listing vessels to seizing them, widening the discount on Russian crude and testing the limits of maritime enforcement.