Nature and Parks Authority probing whether Ketem and Gulliver died from land-based poison or water drunk from Besor River in southern Israel

Man in recording indicates he was involved in cleaning up Alexei Navalny's clothes 'so that there wouldn't be any traces' after Putin critic fell into coma mid-flight over Siberia

Moscow urged by Western nations to 'transparently' reveal circumstances of opposition figure poisoning; Damascus faces calls for investigation over chemical weapon attacks

As international powers press Moscow to quickly investigate alleged poisoning of top Putin rival, Russia rejects 'unfounded attacks'

German hospital treating Alexei Navalny says he is 'responding to verbal stimuli,' but it's too early to gauge 'potential long-term effects of his severe poisoning'

Alexy Navalny, one of Putin's most vocal critics, pushes back against claim he had an allergic reaction

Lawyer says suspect, a rancher, denies deliberately contaminating cow carcass, wiping out about half the vulture population in the area

Man in his 30s from Galilee village said to have sprayed toxin on cow carcass to keep predators away, leading to deaths of half of local species population