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Japan earthquake: Fukushima workers in hospital

Two workers at Japan's damaged Fukushima Daiichi nuclear power plant have been taken to hospital after being exposed to high levels of radiation.

The pair had been attempting to restore the cooling system in reactor 3, which was damaged by the quake on 11 March.

Radiation levels in Tokyo's water supply have now fallen, but remain high in other areas of northern Japan.

Chris Hogg reports.