Activists say the spill - caused after two ships ran were battered by a storm - could cover an area of 400 sq km.

Satellite images reviewed by BBC Verify have shown a major oil slick spreading across the Kerch Strait that separates ... analysed by BBC Verify suggest the spill has spread across the Black ...

The map locates the Kerch Strait ... said. Satellite images published by Mr. Kavanosyan showed two elongated stains near the tanker that ran aground, indicating new oil spills from it after ...

Satellite images published by Kavanosyan showed two elongated stains near the tanker that ran aground, indicating new oil spills from it after two minor earthquakes in the area over the weekend.

The spill could be more than twice the size of a similar disaster in the strait in 2007, which saw up to 1,600 tonnes of heavy oil leak into the sea. Satellite images reviewed by BBC Verify have shown ...