Video appears to show one of the tankers broken in half and sinking amid a heavy storm, with oil visible in the water.

Two oil tankers off the coast of Crimea have sunk, leading to thousands of tons of oil being spilled and an intense search and rescue operation.

Russia militarised the Black Sea and the Sea of Azov, causing ecological disaster. According to Greenpeace, on Sunday, two tankers in the Kerch Strait released thousands of tonnes of fuel oil into the water.