He made this statement at the plenary session of the VTB Russia Calling! investment forum.Commenting on the recent events involving tankers in the Black Sea, the Russian dictator threatened that Moscow might take action against vessels of states that, in his opinion, are facilitating Ukrainian attacks on Russian oil ships."The most radical way is to cut Ukraine off from the sea, then it will be impossible to engage in piracy in general. I hope that Kyiv and those behind it will consider whether it is worth continuing attacks on vessels in the Black Sea," emphasized Vladimir Putin.Tanker attackOn November 28, two tankers simultaneously exploded in the Black Sea near the Turkish coast. These were the Kairos and Virat marine tankers, which are under strict sanctions for transporting Russian oil.According to the Turkish Maritime Affairs Directorate, the Kairos tanker, which was en route to the Russian port of Novorossiysk, initially caught fire, after which the vessel began to sink. Shortly thereafter, almost immediately, the Virat tanker also caught fire, with thick plumes of smoke rising from it. In recent years, there have been cases where vessels have hit mines in the Black Sea, and some mines have been found drifting.The next day, Ukrainian media reported that SBU naval drones had struck two tankers of the Russian "shadow fleet" that were heading to the port of Novorossiysk for cargo.