The European Union imposed sanctions on six Russian individuals linked to the development of epibatidine, a toxin found in South American poison dart frogs, which was detected in Kremlin critic Alexei Navalny’s body after his death in February 2024 in a Russian penal colony [1, 2, 3].

The six sanctioned persons are primarily scientists and researchers associated with Russia's military and chemical research sectors. Among them is Igor Babkin, the head of a laboratory at the Signal Scientific Centre involved in epibatidine research [1, 2, 3]. The European Council stated that "The restrictive measures target scientists and researchers working in Russia's military and chemical research sectors who were involved in the development of epibatidine, a highly toxic substance" [2].

Those sanctioned face asset freezes and a ban on entering EU territory [1, 2, 3]. This action raises the total number of individuals under the EU’s chemical weapons-related sanctions to 31, including six entities [2].

Russia denies responsibility for Navalny’s death and has demanded concrete evidence from European countries accusing Moscow [1, 3]. Navalny was 47 years old when he died in the penal colony [3].

The sanctions were announced on July 3, 2026, as part of the EU Council’s ongoing measures targeting chemical weapons and their developers [1, 2, 3].