The French Navy boarded the oil tanker Tagor on Sunday more than 400 nautical miles west of Brittany after the vessel, sailing from Murmansk, Russia, was suspected of flying a false flag. The operation occurred with UK support and resulted in the ship's diversion at the request of the public prosecutor following document examination. French President Emmanuel Macron posted about the boarding on X, and the Maritime Prefecture of the Atlantic issued a statement on Monday.