The number of people unaccounted for as of Wednesday stands at around 12,000.
International rescue teams have been arriving to Japan to join an all-out relief effort, with the Russian team by far the largest.
Engineers are battling to avert nuclear fuel from boiling at quake-stricken Fukushima Nuclear Power Plant, and helicopters are being used to dump seawater on the facility to cool the reactors and storage units.(*)
Editor: Heru Purwanto
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