https://www.bbc.com/news/world-europe-66412842
A Russian tanker with 11 crew members has been hit in a Ukrainian attack in the Black Sea, Russian officials say.They said the vessel's engine room was damaged in the overnight strike in the Kerch Strait. No-one was hurt.Ukraine has not publicly commented. But a Ukrainian security service source told the BBC a sea drone had been used.Saturday's attack is the second in as many days involving such weapons. Russia, however, has not admitted any damage during Friday's attack.Naval drones, or sea drones, are small, unmanned vessels which operate on or below the water's surface. Research by BBC Verify suggests Ukraine has carried out several attacks with sea drones.
The Kerch Strait connects the Black Sea and the Sea of Azov, separating Crimea - Ukraine's peninsula annexed by Moscow in 2014 - and Russia's Taman peninsula.