Source: Sky News [UK]
“Russian opposition leader Alexei Navalny died in prison in Russia after being poisoned with a deadly toxin found in the skin of Ecuadorian dart frogs, the UK and other allies have [claimed]. The ‘barbaric’ act — using a neurotoxin that is classed as a chemical weapon — could only have been carried out by Vladimir Putin’s government, they said on Saturday. … Russian authorities have previously claimed the dissident’s death was not suspicious but had been caused as a result of ‘combined diseases,’ including an irregular heartbeat.” (02/14/26)
https://news.sky.com/story/navalny-died-after-being-poisoned-with-dart-frog-toxin-13507402