VIENNA - Japan has told the UN atomic watchdog there was an initial increase of radioactivity around a quake-hit plant on Saturday but that levels "have been observed to lessen in recent hours," the Vienna-based agency said.
The International Atomic Energy Agency (IAEA) also said it had been informed by Japanese authorities that Saturday's explosion at the Fukushima Daiichi plant occurred outside the primary containment vessel.
"The plant operator, Tokyo Electric Power Company (TEPCO), has confirmed that the integrity of the primary containment vessel remains intact," it said in a statement.
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