The European Union has condemned the use of chemical weapons in the attempted assassination of Russian opposition politician Alexei Navalny, citing it as "a serious breach of international law and international human rights standards". The EU Council called on the Russian government to cooperate with the Organisation for the Prohibition of Chemical Weapons in its investigation of the matter stating it will follow the issue closely.  Navalny is a critic of President Putin and is currently in German recovering from suspected poisoning from a Novichok nerve agent.

The EU previously adopted a chemical weapons sanctions regime in response to the poisoning of former Russian agent Sergei Skripal and his daughter Yulia in Salisbury in 2018.