A worker at Japan's crippled Fukushima Daiichi nuclear plant died on Saturday from unknown causes, bringing the number of workers there who have died to three since the March 11th earthquake and tsunami.
The plant's operator TEPCO said the employee in his 60's was exposed to 0.1-7 millisieverts of radiation, well below the limit of 250 millisieverts.
Meanwhile, high levels of radiation have been found in seaweed samples collected near the complex and at a sewage plant in east Tokyo.
The environmental organization Greenpeace says 10 of the 22 seaweed samples had radiation levels as much as five times the limit set by Japan for food products.
And Kyodo News reported Friday that a radiation of up to 170-thousand becquerels per kilogram was detected in ashes at the sewage plant in Tokyo on March 25th, just over two weeks following the devastating disaster.