A tanker subject to international sanctions has been reported adrift in the Mediterranean Sea, one day after French authorities intercepted and seized another vessel suspected of operating as part of Russia’s so-called “dark fleet.”

According to maritime tracking data, the sanctioned tanker lost propulsion and declared a status of “not under command” while transiting the central Mediterranean. The vessel was drifting at low speed outside normal shipping lanes, raising concerns over navigational safety and potential environmental risks. The tanker was reportedly carrying a cargo of crude oil and had been en route toward the eastern Mediterranean.

The incident occurred shortly after French naval forces boarded and detained a separate Aframax tanker believed to be linked to sanction-evasion activities. That vessel was diverted to a French port for inspection as part of an ongoing investigation into compliance with European Union and allied sanctions on Russian oil exports.

Authorities have not confirmed any direct operational link between the drifting tanker and the seized vessel, but the timing highlights increasing scrutiny of ships operating under opaque ownership and flag arrangements. Western governments have intensified monitoring of tankers suspected of transporting sanctioned crude using complex ship-to-ship transfers and irregular registration practices.

Maritime safety agencies continue to track the drifting tanker while assessing whether assistance or intervention may be required. The situation underscores growing challenges in enforcing sanctions at sea and managing the risks posed by aging or poorly maintained vessels operating within the shadow fleet network.