Russia has assembled a fleet of hundreds of vessels to covertly ship its oil. With so many ships at sea, the idea of using some to cause havoc may be proving irresistible to the Kremlin.

Finland says a ship affiliated with Russia's "shadow fleet" is linked to a 60-mile-long anchor drag mark on the seafloor. A power cable in the Baltic Sea was severed last week.

Customs officials have seized tens of thousands of tons of fuel transported from Russia by the tanker Eagle S. The crew of this ship is suspected of damaging the EstLink 2 underwater power cable in the Gulf of Finland.

Customs officials have secured tens of thousands of tonnes of fuel transported from Russia by the tanker Eagle S. The crew of this ship is suspected of damaging the EstLink 2 underwater power cable in the Gulf of Finland.