The International Atomic Energy Agency said radioactivity safety limits had been exceeded as far as 25 miles away and urged the government to re-examine its exclusion zone in which residents are banned. Spot tests conducted by the watchdog at Iitate village, 25 miles northwest of Fukushima, showed readings twice as high as levels at which the agency recommends evacuation. But Naoto Kan, the prime minister, said there were no plans to extend the zone from the current 12 miles, affecting 70,000 residents There is a further "stay indoors" policy for a further 130,000 people who live up to 19 miles away.