EU sanctions six Russian scientists over epibatidine toxin linked to Navalny's death
The European Union added six Russian researchers to its sanctions list on Friday, targeting individuals it says were involved in developing the frog-derived toxin epibatidine, identified after Alexei Navalny's death in an Arctic penal colony.
Poisoning confirmed by European investigation
In February 2026, the governments of the Netherlands, the United Kingdom, France, Germany and Sweden concluded in a joint investigation that Russian opposition leader Alexei Navalny was poisoned with epibatidine in his prison cell. The toxin was detected in samples taken from his body after he died on 16 February 2024 in a high-security Arctic penal colony.
The substance causes muscle paralysis and death by asphyxiation.Epibatidine is a toxin found in poison dart frogs in South America. It is not found naturally in Russia.
Scientists in Russia's military research complex
The sanctioned individuals are described by the Council of the European Union as "scientists and researchers within the military sphere". Among them is Igor Babkin, head of the laboratory at the Signal Scientific Centre (SC Signal), where he conducted and published research on synthetic epibatidine. Irina Derevyagina, a chemical research analyst at the State Research Institute of Organic Chemistry and Technology (GosNIIOKhT), a central pillar of Russia's chemical weapons programme, is also listed. The third named individual is Mikhail Gutsalyuk, head of the department organising scientific work at the Military Academy of Radiological, Chemical and Biological Defence.
Sanctions regime and Chemical Weapons Convention
With the additions, the EU's restrictive measures targeting chemical weapons proliferation and use now cover 31 individuals and 6 entities. The six Russians face asset freezes within the bloc, a travel ban to all member states, and a prohibition on EU persons and companies providing funds to them. The EU reaffirmed its commitment to upholding the Chemical Weapons Convention, the international treaty banning such arms.
A pattern of dissent suppressed
Navalny, a fierce critic of President Vladimir Putin, had survived a previous assassination attempt in 2020 when a military lab in Germany confirmed he was poisoned with a Novichok nerve agent. Following the full-scale invasion of Ukraine, a broader crackdown on opposition voices has intensified. Friday's sanctions are an extension of a long series of EU punitive measures against Russian officials accused of silencing critics by violent means.
- Alexei Navalny dies in an Arctic penal colony; Russian officials cite natural causes.
- Five European countries conclude in a joint report that Navalny was poisoned with epibatidine.
- The EU imposes sanctions on six Russian scientists linked to epibatidine development.
