The United Kingdom has accused Russia of involvement in the death of opposition leader Alexei Navalny, alleging the use of a toxin derived from a dart frog. The Foreign Office has stated that there is no innocent explanation for the presence of this toxin in samples taken from Navalny's body. According to the UK authorities, the toxin found in Navalny's system is a rare and potent substance, typically associated with certain species of dart frogs native to Central and South America. The use of such a specific and exotic toxin has raised serious concerns and questions about the circumstances surrounding Navalny's death. The Foreign Office has emphasized that the findings of their investigation point to a deliberate and targeted act. They have called for an international response and further investigation into the matter, urging the Russian government to provide a transparent and credible explanation for the incident. Sursă: bbc.com