The organization has described the fact as a "hard blow" to the efforts that have been carried out in the last decade to recover the species from the 50,000 animals that were left around the world and that "were only beginning to give results", as indicated.
"Preliminary analyzes indicate that there has been a combination of environmental and biological factors that have contributed to the catastrophe, which has reached four large breeding populations of this critically endangered species since the middle of this month of May.
Not a single animal has survived in the affected pastures ", indicated the UNEP.
The organization has indicated that the vice minister of the Ministry of Agriculture of the Asian country, Erlan Nysynbaev, has described the death of these animals as a "gigantic blow" both for Kazakhstan and for the world and has recalled that 90% of the population of this antelope lives in the country.
"It is painful to witness this massive mortality. We have created working groups of all relevant fields, also at the international level, and we are determined to find the causes and carry out all efforts to prevent something like this from happening again." , Nysynbaev has indicated, according to UNEP.
The international organization has indicated that the work of the experts is "clarifying" the intervention of two pathogens as a possible cause of the death of animals, specifically "Pasteurella" and "Clostridia", although they point out that these substances "are only lethal if the immune system is already weakened. "
"Experts are working around the clock to investigate the impact that the strong spring monsoon has had on the health of animal life, as well as other factors such as the composition of the plants or the presence of viruses - has indicated Aline Kühl-Stenzel, one of the UNEP experts involved in the investigation - None of the data obtained so far indicates that rocket fuel has anything to do with it. "
In any case, the organization points out that the count of animal carcasses "will probably well exceed 120,000" because the count is still being carried out by the country's emergency teams.
"What does seem clear is that mass mortality has ended and that many animals monitored by GPS are still alive in places that have not been affected," he stressed.
In addition, UNEP experts have assured that the species "is capable of recovering quickly" and have been confident that, "if it is possible to control what caused the mortality, the populations will recover."