- Programme
- Chemical Weapons
- Designated
- Not published by this authority
- Stated grounds
- Denis SERGEEV is an involved person under the Chemical Weapons (Sanctions) (EU Exit) Regulations 2019 on the basis that he has been responsible for, engaging in, providing support for, or promoting prohibited activity related to chemical weapons. Specifically, SERGEEV provided support in the preparation and use of the chemical weapon Novichok in Salisbury on 4 March 2018, and provided a coordinating role in London on the weekend of the attack.
- Source
- UK Sanctions List (FCDO)
- Last confirmed
- 19 Oct 2026