Rescuers help evacuate people
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Powerful Typhoon Roke hits disaster-ravaged Japan

Typhoon Roke has struck disaster-ravaged Japan and is on course to hit Fukushima, where engineers are still struggling to bring a nuclear plant under control after the March tsunami.

There are concerns that rain could force radioactive water into the sea.

Across Japan more than a million people were urged to evacuate their homes; an advisory was later lifted in one area but 330,000 people remain at risk.

Roland Buerk reports.

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