British authorities intercepted a Russian-linked oil tanker identified as the SMYRTOS while it was attempting to transit the English Channel, officials said. The vessel was boarded by Royal Marine Commandos alongside specially trained officers from the National Crime Agency.
UK officials stated the tanker has been detained and will remain under surveillance off the southern coast of the country as investigations continue. The Ministry of Defence said the operation was conducted within British territorial waters and in line with both domestic and international law.
No immediate information was released about the tanker’s cargo, its intended destination, or its ownership. Authorities have limited public detail as inquiries proceed.
The interception is the latest enforcement action aimed at the so-called shadow fleet - a network of tankers used to carry Russian oil outside the reach of Western sanctions and established price cap mechanisms. Western governments have increasingly focused on the shadow fleet since the start of the war in Ukraine, raising scrutiny of shipping movements along key maritime routes.
European authorities have stepped up monitoring of shipping activity in major sea lanes, and officials framed the boarding of the SMYRTOS as part of that broader enforcement push. The English Channel, where the action took place, is one of the world’s busiest commercial waterways and serves as a crucial corridor for energy and trade flows between Europe and global markets.
Prime Minister Keir Starmer said he personally authorized the operation. In a post on X, he said, "This successful operation delivers yet another blow to Russia and reminds those fueling Putin’s war in Ukraine that we will not let them hide." The government emphasized the operation’s compliance with legal standards.
Officials noted the action comes as Western nations continue to tighten measures intended to limit Russia’s ability to earn revenue from oil exports while sustaining support for Ukraine. The detention of the SMYRTOS will remain under monitoring as investigators pursue further inquiries.