Flames and thick smoke rise from a tanker after blasts struck two vessels from Russia’s shadow fleet in the Black Sea, in this image released November 28. Turkish Directorate General for Maritime Affairs/Handout/Reuters

Ukrainian underwater drones have struck two tankers belonging to Russia’s so-called shadow fleet in the Black Sea, according to an official in Ukraine’s security services (SBU).

Ukraine claimed the attacks after explosions hit the two vessels on Friday and Saturday.

A Ukrainian security source told CNN that Sea Baby maritime drones had been used in a joint operation by the SBU and the navy. There was no immediate comment from Russia.

Both tankers sustained critical damage, the source said, and were effectively taken out of service. “This will deal a significant blow

See Full Page