A Japanese government official has admitted information about the spread of radiation from a stricken nuclear plant was given to the United States more than a week before it was made known to the Japanese public.
The Fukushima plant in northeast Japan was crippled by a massive earthquake and tsumani on 11 March last year.
Testifying in front of Japan's nuclear investigation panel, the science ministry official revealed the data about the spread of radiation was provided to the US military three days after the disaster.
That was nine days before the Japanese public was officially told, the ABC reports.
The official says the government passed the information to the US military first in a bid to get its support in helping with the nuclear crisis.