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Gas bursts probable cause of seal deaths in Dagestan — Prosecutor’s Office

The Office of the Prosecutor sent the animal death papers to the Investigative Department of Dagestan to give a criminal law assessment

MOSCOW, January 30. /TASS/. Huge bursts of natural gas are viewed as the main cause of the mass death of rare Caspian seals on the Caspian seacoast in Dagestan last December, the Volga Inter-Regional Environmental Office of Prosecutor told TASS based on the results of research.

"According to the results of laboratory tests, the Volga-Caspian Branch of the Russian Research Institute of Fisheries and Oceanography did not identify concentrations of pollutants capable of causing the simultaneous death of an ample number of sea mammals. The dead animals examined were adults. The main working hypothesis at present is that the death of the Caspian seals was the result of a huge burst of natural gas (methane-propane-butane mix with hydrogen sulfide addition)," the Office of Prosecutor said.

The Office of the Prosecutor sent the animal death papers to the Investigative Department of Dagestan to give a criminal law assessment.

More than 2,500 dead animals registered with the Russian Red Book were found on the seacoast in Dagestan in early December 2022. About 50 dead seals were found during several days, as reported on January 17 of this year. The Caspian seal is the only sea mammal in the Caspian Sea and is an endangered species.