NHK World reports:
Chief Cabinet Secretary Yukio Edano says computer forecasts show that radiation leaking from a nuclear plant could pose a hazard to people outside its 30-kilometer zone.Meanwhile, the Daily Mail is reporting that 5 of the 50 workers who stayed behind to save the plant are now believed to be dead.
Edano said at a news conference on Wednesday that a computer forecast system has shown that radiation levels in some areas outside the 30-kilometer zone would exceed 100 millisieverts, which is the level that could affect the human thyroid if a person is exposed to it outdoors for 24 hours.
Edano cited a lack of data and the need for more precise calculations, and said there is no need for immediate evacuation or to seek shelter indoors.
At the same time, he urged people living downwind from the plant to stay indoors as much as possible and keep the windows shut as a precaution.