UN expresses concern over Ukraine nuclear plant's water levels after dam collapse.

The UN atomic watchdog expressed concern over the water levels at the breached Kakhovka dam used for cooling the Zaporizhzhia nuclear plant's reactors. The International Atomic Energy Agency head, Rafael Grossi, said that there is a significant discrepancy in water level data and that wider access is needed to check the situation. The destruction of the Kakhovka hydropower dam in southern Ukraine last week has flooded towns downstream and forced thousands of people from their homes. The Zaporizhzhia plant can fall back on other water sources when the reservoir's water is no longer available, including a large cooling pond above the reservoir with several months' worth of water.