European Union naval forces have boarded another tanker linked to Russia’s so-called "shadow fleet" in the Mediterranean, escalating enforcement actions against vessels suspected of circumventing sanctions.

The operation, led by Italy, took place near Sicily on Sunday and represents the second interception of its kind in less than two weeks.

The move signals a tightening of the EU’s maritime enforcement posture.

By physically boarding and inspecting vessels, European authorities are moving beyond monitoring to active disruption of routes used to obscure the origin and destination of Russian crude.

This operational shift increases the friction and insurance costs for traders relying on these opaque supply chains.

The incident follows a similar interception by British authorities in the English Channel earlier this week, where Prime Minister Keir Starmer confirmed the boarding of a tanker linked to the shadow fleet.