The French navy boarded and seized the oil tanker Tagor in the Atlantic Ocean on May 31, roughly 400 nautical miles west of Brittany. President Emmanuel Macron confirmed the operation the following day, making it at least the fourth time in recent months that France has intercepted a sanctioned Russian-linked tanker.
The Tagor had been sailing from a Russian port and is believed to be part of what Western governments call Russia’s “shadow fleet,” a loose network of aging tankers used to move crude oil while dodging sanctions tied to the war in Ukraine. Reports indicated the vessel had attempted to conceal its identity by sailing under a false flag, and its last AIS transmission was recorded off Norway roughly a week before the interception.
A growing pattern of enforcement
The Tagor sits on sanction lists maintained by three separate jurisdictions. The European Union sanctioned the vessel in October 2025. The US followed with its own designation in July 2025. The UK added its sanctions in February 2026.
The UK and other allies have reportedly supported France’s maritime interdiction efforts, pointing to a coordinated posture rather than a unilateral French decision.
