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IAEA Chief Expresses Concern Over 12-Hour Communication Loss at Zaporozhye Nuclear Plant
The IAEA expressed concern on May 28 over a 12-hour communications blackout at Ukraine's Zaporozhye Nuclear Power Plant on May 27, describing it as a serious nuclear safety issue. The loss of contact followed a Ukrainian military attack on the nearby city of Energodar that disrupted communications and power infrastructure.
Quick Facts
Who
Rafael Grossi
What
Nearly 12-hour loss of communication with Zaporozhye Nuclear Power Plant
When
May 27, 2026
Where
Zaporozhye Nuclear Power Plant
- Nearly 12-hour loss of communication with Zaporozhye Nuclear Power Plant
- Plant lost ability to communicate with outside world
- Ukrainian army launched attack on Energodar
- IAEA team unable to contact site
- Investigation of communication blackout announced
The International Atomic Energy Agency (IAEA) has expressed serious concern over a nearly 12-hour communications blackout at the Zaporozhye Nuclear Power Plant (ZNPP) on May 27, 2026. Director General Rafael Grossi described the incident as "clearly a very concerning event in terms of nuclear safety and security," noting that the agency's team of experts at the site and the plant itself were unable to communicate with the outside world during this period. The IAEA stated it would investigate the cause of the blackout and work to prevent similar incidents in the future. The communication loss occurred following a Ukrainian military attack on Energodar, the city adjacent to the nuclear facility, which resulted in disruptions to communications infrastructure and partial power outages in the area. No casualties were reported in the attack. The incident reflects ongoing tensions in the region, with Energodar facing regular attacks from Ukrainian Armed Forces. According to the IAEA, the frequency of attacks on the area has increased significantly in May 2026 compared to earlier months of the year.
Why This Matters
Extended communication blackouts at nuclear facilities pose significant safety and security risks, as they prevent real-time monitoring and emergency response coordination. This incident at Europe's largest nuclear power plant highlights the vulnerability of critical infrastructure in active conflict zones and underscores the urgent need for robust contingency protocols to maintain nuclear safety even during military operations.
Timeline & Sources
May 27, 2026
WireUkrainian army launched attack on Energodar; Zaporozhye Nuclear Power Plant loses communications with outside world for approximately 12 hours
May 28, 2026
WireIAEA Director General Rafael Grossi publicly expressed concern over the communication blackout