In a coordinated operation with international partners, French authorities detained a Russia-tied oil tanker suspected of evading Western sanctions over Moscow’s full-scale invasion of Ukraine in the Atlantic Ocean over the weekend, triggering a sharp rebuke from the Kremlin that has labeled the seizure an act of modern piracy. This interception marks the fourth such vessel detained by French forces since September 2024 as part of a broader crackdown on Russia’s shadow fossil fuel fleet, a loose network of unregulated ships used to bypass export restrictions imposed after the 2022 Ukraine invasion.
The 23-crew vessel, identified as the *Tagor*, was intercepted early Sunday morning more than 400 nautical miles off the coast of Brittany in international waters, after its Russian captain repeatedly ignored orders to stop for inspection, French maritime prosecutors confirmed. The operation received logistical and intelligence support from the United Kingdom and other allied nations, according to official statements. French maritime officials revealed the ship was falsely flying a Cameroonian flag while traveling from Murmansk, a major Russian Arctic port, toward Limbe, a coastal city in Cameroon. A criminal investigation has already been opened by prosecutors in the northwestern French city of Brest, focusing on charges of vessel identity fraud, unregistered flag use, and refusal to comply with maritime law enforcement orders.
Open-source sanctions tracking database Opensanctions.org has linked the *Tagor* to Mohammad Hossein Shamkhani, an Iranian petroleum shipping magnate and son of prominent Iranian security official Ali Shamkhani, who was killed alongside his son in a US-Israeli airstrike in late February that ignited the latest round of open conflict in the Middle East. French officials declined to comment on the specific connections to Shamkhani when pressed for details.
Footage of the interception, shared publicly by French President Emmanuel Macron on social media, shows French special operations commandos rappelling from a military helicopter onto the tanker’s deck to seize control. Macron emphasized in a accompanying statement that sanction-busting vessels that violate international maritime law effectively fund Russia’s ongoing war in Ukraine, an outcome the international community cannot accept. “It is unacceptable for ships to circumvent international sanctions, violate the law of the sea, and fund the war that Russia has been waging against Ukraine,” Macron said.
Following the interception, the *Tagor* is currently being escorted by the French Navy to a designated French anchorage for full documentation and cargo inspections. Guillaume Le Rasle, spokesperson for France’s Atlantic maritime prefecture, told reporters the vessel had been on the international community’s radar for months: “It is a vessel that was known and tracked. It is already subject to EU and U.S. sanctions.” The decision to divert the ship to French waters was finalized Sunday evening, he added, with the primary initial goal of verifying the validity of its registration and flag.
Shadow fleet vessels routinely engage in a practice called “flag-hopping,” constantly switching their country of registration or using invalid, expired registrations to avoid detection by international sanctions enforcers. Since September, France has detained three other vessels suspected of being part of Russia’s shadow fleet; all three were eventually allowed to resume travel after their owners paid administrative fines. In April, French authorities announced plans to double fines for unflagged or non-compliant sanction-busting ships, as part of a national effort to strengthen enforcement of international sanctions.
Kremlin spokesperson Dmitry Peskov rejected the French operation as a violation of international law in comments to reporters Monday, saying the seizure amounts to international piracy. “We consider these acts illegal. They border on international piracy,” Peskov said, adding that “Russia is taking measures to ensure the safety of its cargo” moving through global waters. The Russian Embassy in Paris also confirmed it had formally requested information from French authorities about the *Tagor* and its crew, saying no official notification of the interception had been provided by Paris. Prior to the seizure, the *Tagor* had previously flown flags of Madagascar, the Marshall Islands, and Panama, consistent with the flag-hopping behavior common to shadow fleet operations.
The interception comes as Western nations ramp up pressure on Russia’s shadow fleet of oil tankers. The European Union currently has sanctions in place against nearly 600 ships confirmed or suspected of being part of the network, which Russia uses to sell oil to third-party nations at discounted prices bypassing Western price caps and export bans.