Dozens of dolphins and other marine mammals found dead after massive oil tanker spill in Russia

Thirty-two dolphins have died since fuel oil spilled out of two storm-stricken tankers three weeks ago in the Kerch Strait, which separates the Russia-occupied Crimean Peninsula from Russia's southern Krasnodar region, an animal rescue group said Sunday.

Russia's Delfa Dolphin Rescue and Research Center said the deaths are "most likely related to the fuel oil spill."

The center said on the messaging app Telegram that a total of 61 dead cetaceans - an order of aquatic mammals that includes whales and dolphins - had been recorded since the emergency, but the condition of the bodies suggested that the 29 others had died before the spill.