A number of tankers of the ships' owner Volgatransneft did not have a license for transporting dangerous cargoes in inland waters MOSCOW, December 25. /TASS/. Two tankers, which sunk in the Kerch strait earlier this month causing a major oil spill, have violated seasonal restrictions on maritime traffic in the area, the Russian Transport Ministry said in a statement on its Telegram channel. "An inspection by the Federal Service for Supervision of Transport established that both vessels were