Russia's state media say an estimated 3,700 tons of low-grade fuel oil has spilled into the Kerch Strait after two Russian ships were seriously damaged by stormy weather.

Two Russian tankers carrying thousands of tons of fuel were badly damaged in stormy weather near the Black Sea over the weekend, leading to an oil<a class="excerpt-read-more" href=" More

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