
A handout picture dated and released by Tokyo Electric Power Co (TEPCO) 14 April 2011 shows the cask for 38 fuel assembly at the Fukushima nuclear power plant in Okuma city, Fukushima Prefecture. TEPCO, the operator of a troubled nuclear power plant in north-eastern Japan, has been working to transfer highly radioactive water to a nearby storage vessel, the company said 13 April 2011. EPA/TEPCO/HO EDITORIAL USE ONLY/NO SALES

A handout picture dated 11 April 2011 released by Tokyo Electric Power Co (TEPCO) on 14 April 2011 showing damages caused by the tsunami at the Fukushima No. 1 nuclear power plant. EPA/TEPCO/HO

Memebers of Japan's Self-Defence Force search for missing tsunami victims in Ishinomaki, Miyagi Prefecture, northern Japan, 13 April 2011. More than 27,000 people have been killed or gone missing after a 9.0-magnitude earthquake and subsequent tsunami hit the region on 11 March. The death toll is expected to rise as the search and recovery operations for the bodies continue. Some 15,000 survivors are still living in the evacuation centers as a series of aftershocks keep rocking the country. EPA/KIMIMASA MAYAMA

Volunteers wearing t-shirts that read 'Pray for Japan' make octopus dumplings for evacuees at an evacuation center in the tsunami-devastated coastal town of Onagawa, Miyagi prefecture, northeastern Japan, 13 April 2011. More than 27,000 people have been killed or gone missing after a 9.0-magnitude earthquake and subsequent tsunami hit the region on 11 March. The death toll is expected to rise as the search and recovery operations for the bodies continue. Some 15,000 survivors are still living in the evacuation centers as a series of aftershocks keep rocking the country. EPA/DAI KUROKAWA

Memebers of Japan's Self-Defence Force search for missing tsunami victims outside Okawa Elementary School in Ishinomaki, Miyagi Prefecture, northern Japan, 13 April 2011. More than 27,000 people have been killed or gone missing after a 9.0-magnitude earthquake and subsequent tsunami hit the region on 11 March. The death toll is expected to rise as the search and recovery operations for the bodies continue. Some 15,000 survivors are still living in the evacuation centers as a series of aftershocks keep rocking the country. EPA/KIMIMASA MAYAMA

Memebers of Japan's Self-Defence Force search for missing tsunami victims in Ishinomaki, Miyagi Prefecture, northern Japan, 13 April 2011. More than 27,000 people have been killed or gone missing after a 9.0-magnitude earthquake and subsequent tsunami hit the region on 11 March. The death toll is expected to rise as the search and recovery operations for the bodies continue. Some 15,000 survivors are still living in the evacuation centers as a series of aftershocks keep rocking the country. EPA/KIMIMASA MAYAMA

A handout picture taken and released by Tokyo Electric Power Co (TEPCO) 13 April 2011 shows workers using a concrete pump to pump contaminated water from the Fukushima No.1 nuclear power plant in Okuma, Fukushima prefecture. TEPCO, the operator of a troubled nuclear power plant in north-eastern Japan, has been working to transfer highly radioactive water to a nearby storage vessel, the company said 13 April 2011. EPA/TEPCO/HO EDITORIAL USE ONLY/NO SALES

A handout picture taken and released by Tokyo Electric Power Co (TEPCO) 13 April 2011 shows workers as they put a steel fence to a watergate in order to prevent the outflow of radioactive water at the Fukushima No. 1 nuclear power plant in Okuma, Fukushima prefecture. TEPCO, the operator of a troubled nuclear power plant in north-eastern Japan, has been working to transfer highly radioactive water to a nearby storage vessel, the company said 13 April 2011. EPA/TEPCO/HO EDITORIAL USE ONLY/NO SALES

A handout picture taken and released by Tokyo Electric Power Co (TEPCO) 13 April 2011 shows a fire in the facilities takling seawater samples at Fukushima nuclear power plant in Okuma, Fukushima Prefecture. TEPCO, the operator of a troubled nuclear power plant in north-eastern Japan, has been working to transfer highly radioactive water to a nearby storage vessel, the company said 13 April 2011. EPA/TEPCO/HO EDITORIAL USE ONLY/NO SALES