Ships transporting Russian oil through the Baltic Sea must be adequately insured against oil spills or face potential sanctions, according to a new scheme finalized at the Joint Expeditionary Force meeting on Monday.

Twelve European countries are set to clamp down on tankers that move millions of barrels of Russian petroleum around the world — by asking to see how they’re protected against oil spills and other high-cost claims.

Britain on Tuesday sanctioned 20 ships that it said were using illicit practices to avoid sanctions on Russian oil, its latest measures targeting Russia's so-called shadow fleet of vessels. "As (Russian President Vladimir) Putin's oil revenues continue to fuel the fires of his illegal war,