U.S. and allies say Russia poisoned Navalny with frog toxin in prison

Several European nations have released an assessment concluding that Russian opposition leader Alexei Navalny was poisoned in prison with a toxin from a dart frog. The U.S., through Senator Marco Rubio, says it does not dispute this European assessment and finds the report concerning.

The United Kingdom is calling for action to be taken against Russia following this conclusion. The allegations add to a long history of Western accusations that the Russian state has targeted Navalny, who died in a Russian penal colony in February.