On 1 September, shelling near Ukraine's Zaporizhzhia nuclear plant complex forced a visit by UN experts to be delayed. Earlier, Energoatom said Russian shelling forced the shutdown of one of only two operating reactors, while Moscow said it had thwarted a Ukrainian attempt to seize the plant. There are regular incidents at or near Zaporizhzhya. The plant was recently disconnected from Ukraine's power grid and back-up generators kicked in to supply power after fires damaged overhead power lines, cutting the plant off for the first time in its history. The director of IAEA, Rafael Grossi, said the team had made good progress on the first day of their inspection and would be staying on. Residents near the site were given iodine tablets recently in case of a radiation leak.