TOKYO (AP) - Officials say a measurement showing a huge spike in radiation levels at a stricken Japanese nuclear complex was a mistake.
The readings, which showed water testing 10 million times higher in radioactivity than normal in the reactor's cooling system, drove workers to flee.
On Sunday night, though, plant operators said that while the water was contaminated with radiation, the extremely high reading was inaccurate.
"The number is not credible," said Tokyo Electric Power Co. spokesman Takashi Kurita. "We are very sorry."