Record radiation levels detected at Fukushima reactor

TEPCO, the operator of Japan's crippled Fukushima nuclear plant, said Wednesday record amounts of radiation had been detected in the basement of reactor number 1, further hampering clean-up operations.

TEPCO took samples from the basement after lowering a camera and surveying instruments through a drain hole in the basement ceiling.

Radiation levels above radioactive water in the basement reached up to 10,300 millisievert an hour, a dose that will kill humans within a short time after making them sick within minutes.

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