The IAEA was informed of the strike – the fourth such incident in recent weeks – by Iranian officials. Iran also informed the agency that a member of the site’s physical protection staff members was killed by a projectile fragment and that a building on site was affected by shockwaves and fragments.

Mr. Grossi emphasised that nuclear power plant sites or nearby areas must never be attacked, noting that auxiliary site buildings may contain vital safety equipment. No increase in radiation levels was reported, following the latest incident.

Reiterating call for maximum military restraint to avoid risk of a nuclear accident, Mr. Grossi again stressed the paramount importance of adhering to the IAEA’s seven pillars for ensuring nuclear safety and security during a conflict (see below).

The previous strike on Bushehr took place on 18 March, when a structure about 350 metres from the reactor was hit and destroyed. No damage to the reactor or injuries were reported, but the agency warned that any attack near nuclear facilities risks violating key safety principles.

Earlier in the month, in an address to the IAEA Board at the agency’s headquarters in Vienna, Austria, Mr. Grossi underscored the risk of a nuclear incident from the military escalation since Iran “and many other countries in the region that have been subjected to military attacks have operational nuclear power plants and nuclear research reactors”.