# Amboseli elephant cyanide poisoning investigation > Live situation record from CLSTR: https://clstr.news/situations/amboseli-elephant-deaths-investigation > Updated: 2026-08-07T04:17:02.000Z. Sources: 75. Developments: 4. Between 24 June and 31 July 2026, fifteen to sixteen elephants died in Kenya’s Amboseli‑Kimana ecosystem, most of them adult females and their calves. Affected animals showed weakness, partial hind‑limb paralysis and breathing difficulty before collapsing within one to two days. Post‑mortem examinations repeatedly found tomatoes – and in some cases watermelons – in the stomachs, and laboratory analysis by the University of Nairobi confirmed cyanide residues. The Kenya Wildlife Service (KWS) has expanded its inquiry, deploying veterinary and scientific teams from Nairobi, Tsavo and Amboseli, and collecting extensive environmental samples. KWS has asked the Pest Control Products Board to head a multi‑agency technical team to determine whether pesticide‑treated crops, runoff, or contaminated water and soil caused the poisoning. Investigators are also assessing whether the cyanogenic plant giant star grass could have contributed. Local farmer Elvis Muchai, a long‑time tomato grower, disputes any link to farm chemicals, noting that elephants frequently raid crops and cause losses. KWS Director General Prof. Erastus Kanga reiterated the agency’s commitment to establishing the facts and keeping the public informed. The incident occurs as Kenya’s elephant population, recently rebuilt to over 36,000, faces a notable setback in human‑wildlife coexistence. While no immediate human health risk has been identified, officials warn that cyanide runoff could threaten livestock and underscore broader concerns about pesticide regulation and agro‑chemical contamination near wildlife corridors. By early August, KWS had intensified ranger patrols and veterinary monitoring across the Amboseli‑Kimana area. Confirmatory laboratory testing on tissue samples is ongoing, and the multi‑agency technical team continues to examine possible contamination from pesticide use, storage, or disposal, as well as the role of the cyanogenic grass Cynodon plectostachyus. Authorities maintain that the investigation is active and will update the public as results become available. ## Claims - Fifteen elephants were found dead in Amboseli National Park between 24 June and 24 July 2026. (disputed by 25 sources) - Fifteen to sixteen elephants died in the Amboseli‑Kimana ecosystem between June 24 and July 31, 2024. (disputed by 8 sources) - Laboratory analysis detected cyanide residues in elephant carcasses. (corroborated by 25 sources) - The suspected source of cyanide is pesticide applied to nearby tomato farms. (corroborated by 25 sources) - Tomatoes were found in the stomachs of several dead elephants. (corroborated by 25 sources) - The cyanide could affect livestock and potentially humans in the surrounding area. (corroborated by 25 sources) - Ten of the elephants showed partial paralysis before dying within one to two days. (corroborated by 25 sources) - The International Fund for Animal Welfare called the incident a major setback for African elephant populations. (corroborated by 23 sources) - Cyanide is a highly toxic chemical that affects the lungs and liver of each elephant that ingests it. (corroborated by 19 sources) - Kenya Wildlife Service opened an investigation into the elephant deaths. (corroborated by 17 sources) - KWS deployed veterinary and scientific teams from Nairobi, Tsavo and Amboseli after the first elephant death was reported on 24 June. (corroborated by 8 sources) ## Timeline ### 2026-08-07: Kenya probes cyanide poisoning in deaths of 15‑16 elephants near Amboseli National Park Kenya Wildlife Service is investigating cyanide poisoning suspected in the deaths of 15‑16 elephants near Amboseli National Park, while farmers deny any role. 9 sources. https://clstr.news/cluster/elephant-deaths-in-kenyas-amboseli-park-linked-to-suspected-cyanide-poisoning ### 2026-08-04: Kenya Elephant Deaths Linked to Cyanide Pesticide from Tomato Farms Fifteen elephants died in Kenya’s Amboseli region after showing cyanide poisoning signs, likely from pesticide sprays on nearby tomato farms, prompting wildlife and health warnings. 4 sources. https://clstr.news/cluster/kenya-elephant-deaths-linked-to-cyanide-pesticide-from-tomato-farms ### 2026-07-30: Kenya Wildlife Service probes cyanide poisoning of 15 elephants in Amboseli Fifteen elephants died near Amboseli Park (24 Jun‑24 Jul 2026); cyanide traces and tomatoes were found in carcasses, prompting a Kenya Wildlife Service probe and warnings of wider ecological impact. 26 sources. https://clstr.news/cluster/kenya-wildlife-ties-15-elephant-deaths-to-cyanidetainted-tomatoes ### 2026-07-28: Kenya Wildlife Service probes mass elephant deaths in Amboseli 14‑16 elephants died in Kenya’s Amboseli region in June‑July 2026; KWS is investigating with labs indicating a possible toxic substance, including cyanide, but the cause remains unknown. 40 sources. https://clstr.news/cluster/kenya-investigates-death-of-14-elephants-near-amboseli-national-park --- Cite as: Amboseli elephant cyanide poisoning investigation. CLSTR, https://clstr.news/situations/amboseli-elephant-deaths-investigation