Dozens of sea mammals have been found dead since last month's Russian oil tanker spill in the Black Sea, a dolphin rescue centre said Sunday, as authorities raced to contain the disaster.Russia's Delfa centre,

The US is planning to impose further sanctions on tankers, carrying Russian crude oil in order to hinder Moscow’s war efforts against Ukraine.

A court in Finland denied a request to release an oil tanker, which is suspected to have damaged an undersea power line and four telecommunications cables in the Baltic Sea, according to a Reuters report.

A dolphin rescue center in Russia says 32 dolphins have died since fuel oil spilled out of two storm-stricken tankers three weeks ago in the Kerch Strait near the Russia-occupied Crimean Peninsula

The Deepwater Horizon oil spill that began nearly 15 years ago may have had a larger impact on offshore ecosystems than previously thought, recent research suggests.

Large numbers of dead dolphins have washed up on the shores and banks of the Black Sea since two Russian oil tankers collided in the Kerch Strait last month.