Ukraine says it hit an oil depot inside Russia that served a strategic air base in the southern Saratov region in what appears to have been a strike with Ukrainian weapons.

The head of Moscow-annexed Crimea warned Wednesday there was a "high risk" the peninsula would suffer severe environmental damage from an oil spill in the Black Sea.

The ecological catastrophe began December 15, when two Russian oil tankers, the Volgoneft-212 and the Volgoneft-239, sank ...

Authorities in Crimea have declared a regional emergency after oil from storm-damaged tankers reached the shores of ...

Thirty-two dolphins have died since fuel oil spilled out of two storm-stricken tankers three weeks ago in the Kerch Strait, ...

Most of the more than 30 dolphins killed in a Russian oil spill in the Kerch Strait were from the endangered Azov species.

Satellite images from January 5 show large fuel oil stains ranging from 3.5 to 9.5 kilometers west of Sevastopol, with a ...

Russia-appointed officials in Moscow-occupied Crimea have announced a regional emergency after oil was detected on the coast ...

Russia declared a regional state of emergency on Saturday in Crimea, which it seized from Ukraine in 2014, as workers cleared ...

much of which spilled into the Kerch Strait between mainland Russia and annexed Crimea. Putin last week labelled the spill an “environmental disaster.” At least 3,700 tons of heavy oil were ...