Updated

GENEVA -- The World Health Organization says Japan needs to act quickly and ban food sales from areas around the damaged Fukushima nuclear plant if the food there is found to contain excessive levels of radiation.

A spokesman for the Geneva-based agency says radiation in food can accumulate in the body and poses a greater risk to health than radioactive particles in the air, which disperse within days.

WHO spokesman Gregory Hartl told The Associated Press on Monday "they're going to have to take some decisions quickly in Japan to shut down and stop food being used completely from zones which they feel might be affected."

The global body doesn't have any radiation experts of its own in Japan and says any policy decision must be taken by the Japanese government.