Israeli jets have bombed a nuclear reactor under construction in central Iran during a wave of air strikes on the seventh day of the conflict between the two countries.
The Israeli military said it targeted the Arak heavy water reactor's core seal to stop it being used for "nuclear weapons development".
The International Atomic Energy Agency confirmed the reactor was hit and that it contained no nuclear material.
Spent fuel from heavy water reactors contains plutonium suitable for a nuclear bomb.
Iran - which says its nuclear programme is entirely peaceful - agreed under a 2015 deal with world powers to redesign and rebuild Arak so it could not produce weapons-grade plutonium.
