Pressure is on Japan to expand the evacuation zone around a stricken nuclear power plant after high levels of radiation were found outside the zone.
Plutonium in soil at the Fukushima nuclear complex heightened alarm on Tuesday over the battle to contain the world’s worst atomic crisis in 25 years.
Radiation levels have soared in seawater near Japan’s crippled Fukushima Daiichi nuclear plant, officials said on Saturday.