The French Navy boarded and seized the sanctioned Russian oil tanker Tagor on May 31 in international waters roughly 400 nautical miles west of Brittany, France. President Emmanuel Macron announced the operation publicly the following day, framing it as a direct strike against Russia’s so-called shadow fleet, the sprawling network of aging tankers used to move crude oil while dodging Western sanctions.
The Tagor had departed from Murmansk, Russia, and was operating under a false flag when French forces intercepted it with support from the UK. It is sanctioned by the EU, the US, the UK, Ukraine, and Switzerland.
A pattern, not a one-off
The Tagor seizure marks at least the third or fourth interception of sanctioned Russian-linked tankers by French forces in recent months, part of a broader cooperative enforcement push in international waters.
The EU sanctioned the Tagor in October 2025. The US followed in July 2025. The UK added its designation in February 2026.













