Between June 24 and July 24, 2026, 15 elephants died in the Amboseli ecosystem of southern Kenya, including in Amboseli National Park, Kimana Sanctuary, and Kuku Group Ranch areas, officials said [1, 2, 3, 4]. Ten of the elephants showed similar symptoms of partial paralysis and died within one to two days after symptoms appeared, with most victims being adult females and calves; only one adult male was among the dead [1, 2, 3, 4]. The remaining five carcasses were too decomposed or scavenged to determine the cause of death [1, 2, 3, 4].

Preliminary laboratory tests detected a suspected toxic substance, including cyanide, in tissue samples from the dead elephants according to some sources, although the government lab reported negative results for some toxins and further tests are ongoing [1, 4]. Authorities say investigations continue to pinpoint the exact nature, concentration, and origin of the poison and whether environmental contamination or human activities played a role [1, 2, 3, 4]. Elephants are believed to have ingested pesticide-contaminated tomatoes from nearby farms bordering the ecosystem, but this has not been confirmed [4].

Kenya Wildlife Service said environmental probes are underway, including testing water sources and other potential contaminants in affected areas to determine if the elephants were exposed to a common source. "Between 24th June and 24th July 2026, 15 elephant deaths were recorded in Amboseli National Park, Kimana Sanctuary and the Kuku Ranch area," the agency said, adding that 10 elephants exhibited partial paralysis before dying [1, 3].

The Amboseli ecosystem hosts about 2,000 elephants and is known for strong anti-poaching efforts [5, 1, 4]. Some sources note the carcasses were found 15 to 30 km from the park boundary, while others state deaths occurred inside the national park and adjacent protected areas [5, 1, 2, 3, 4].

The world’s eyes remain on this Kenyan landscape as laboratories continue to analyze samples to establish the definitive cause of death. Authorities have not announced a timetable for results or further updates.