The World Health Organisation has begun reviewing the possible implications of radioactive contamination in Japan's agricultural food supplies in the wake of damage to the Fukushima nuclear reactor.

So far, readings of spinach found some distance away from the plant have been described as "serious" by the WHO, and experts are currently examining the data to compare with current guidelines. “They’re going to have to make some decisions quickly in Japan to shut down and stop food being used completely from zones which they feel might be affected," said WHO spokesman Gregory Hartl. Japan has already stopped sales of raw milk and spinach from areas around the plant.