Russian shadow fleet tanker owner fined €1 million by French court after Atlantic interception

Arrest and fine

The tanker Tagor was intercepted by the French navy on 31 May 2026 in international waters roughly 700 km west of Brittany. Flying a suspected false Cameroonian flag, the vessel was sailing from Murmansk, Russia, toward Limbé, Cameroon, and was nearly empty at the time of boarding. It was the fourth such seizure by France since targeted operations against Russia’s oil-export sanctions evasion began in September 2025.

Legal outcome

On Thursday, Brest prosecutor Stéphane Kellenberger announced that the ship’s owner (a company registered in the Marshall Islands) had been fined €1 million and that the money had already been paid. The owner admitted guilt in a plea-bargain procedure and committed to securing a lawful flag without delay.

“The administrative immobilisation of the vessel will be lifted and Tagor will be able to leave French territorial waters.”

The tanker had been held at the port of Douarnenez bay for over a month.

Shadow fleet and sanctions

The Tagor is under US and EU sanctions and had previously changed its flag multiple times, including those of Madagascar, the Marshall Islands and Panama. French authorities assess that Russia operates a shadow fleet of 800 to 1,000 older, foreign-flagged vessels to circumvent international oil-export sanctions.

Wider French interceptions

A fifth vessel, the Deliver, intercepted off Sicily on 23 June, remained immobilised near the Marseille-Fos oil terminal as of Thursday. France had previously stopped three other tankers before the Tagor, the first of which came in September 2025. The French navy is increasingly active in intercepting such vessels, which Western governments say are used by Moscow to evade Western caps on its oil revenues.

Kremlin response

Moscow condemned the interception as illegal. Kremlin spokesperson Dmitry Peskov said the operation was “on the verge of international piracy”, even though the Montego Bay convention allows inspections on the high seas when a flag is suspected of being false.