A Russian Shahed drone struck the spent-fuel reception building at the Chornobyl site at around 02:00 on 7 June, and the IAEA (International Atomic Energy Agency, the UN nuclear watchdog) confirmed significant structural damage to the facade, windows and doors, with a small fire that was put out 1. No spent fuel was stored in the struck building and radiation stayed within limits, but IAEA chief Rafael Grossi noted large amounts of nuclear material sat metres away.
The first incident of the week was at Zaporizhzhia Nuclear Power Plant (ZNPP), where the safety problem turned from a count into a broken promise. On 5 June the IAEA brokered the war's sixth local ceasefire to repair the main 750kV line, severed since 24 March . Repairs began on 6 June. Within hours the plant suffered a 15-hour total blackout, its 18th and one of the longest of the war, after a drone attack during the agreed window 2.
Rosatom accused Ukraine of striking the repair engineers; Ukraine denied it; the IAEA team on site could not attribute the attack. The pattern repeats the accountability deadlock Rosatom deepened in May when it publicly attacked the IAEA's credibility . Each side has an interest in the other being blamed, which is precisely why the ceasefire-then-incident sequence keeps recurring without resolution.
