Japan Ground Self-Defense Force soldiers, mobilized to wash away radioactive material emitted from a nuclear power plant damaged by Friday's earthquake, put on protective gear on their arrival in Nihonmatsu, Fukushima Prefecture, Japan, Tuesday, March 15, 2011. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, HONG KONG, JAPAN, SOUTH KOREA AND FRANCE (AP)
Japan: Reactor catches fire at nuclear power plant
Authorities report flames rising from No. 4 reactor at Fukushima Dai-Ichi power plant
The operator of Japan's stricken Fukushima Dai-Ichi nuclear power plant says a fire has broken out again at its No. 4 reactor unit.
Tokyo Electric Power Co. spokesman Hajimi Motujuku says the blaze erupted early Wednesday in the outer housing of the reactor's containment vessel. Fire fighters are trying to put out the flames. Japan's nuclear safety agency also confirmed the fire, whose cause was not immediately known.
On Tuesday, a fire broke out in the reactor's fuel storage pond -- an area where used nuclear fuel is kept cool -- causing radioactivity to be released into the atmosphere.
Officials are struggling to address the failure of safety systems at several of the plant's reactors after Friday's massive earthquake and tsunami.