In an interview with AFP, the UN's nuclear watchdog chief Rafael Grossi says that Japan's release of more than 500 Olympic swimming pools' worth of diluted wastewater from Fukushima into the Pacific is safe, 12 years after a tsunami knocked out three reactors in one of the world's worst atomic accidents. "So far we have been able to confirm that the first releases of this water do not contain any radionuclides at the level that will be harmful," the IAEA's Director General says. IMAGES AND SOUNDBITES