
24 February 2022 marked the beginning of the armed conflict in Ukraine and the first time in history that this has occurred amid the facilities of a major nuclear power programme. Numerous events, such as shelling, air attacks, difficulties with staffing levels and working conditions and losses of off-site power supply, impacted nuclear safety and security on-site.
Two nuclear facilities have come under the control of Russian armed forces: the Chornobyl nuclear power plant site, between 24 February and 31 March 2022, and the Zaporizhzhya nuclear power plant on 4 March 2022, which currently remains under Russian Federation control. The IAEA promptly took steps to help stabilize the critical nuclear safety and security situation and prevent a nuclear accident in Ukraine.