A view of the occupied Zaporizhzhia nuclear power plant after operations were completely halted in Enerhodar, Ukraine, on Sept.

A view of the occupied Zaporizhzhia nuclear power plant after operations were completely halted in Enerhodar, Ukraine, on Sept.

Key points

• The plant lost both landline and internet connections for about 12 hours on May 27, marking the longest such outage at the facility since the start of Russia's full-scale…
• The cause of the outage was not immediately clear, but it coincided with reported attacks on the nearby Russian-occupied city of Enerhodar , where most plant employees live.
• "For many hours, we were unable to contact our team of experts at the site, and the plant was unable to communicate with the outside world in the usual way," Grossi said.
• "This was clearly a very concerning event in terms of nuclear safety and security.
• The IAEA team will continue to investigate what caused this communication blackout and discuss how to prevent a recurrence," he added.