This photo shows an evaporation facility at the Fukushima Daiichi nuclear power plant, designed to remove radioactive cesium from the water.<br/> Tokyo Electric Power Company, owner of the stricken plant, announced on Sunday that some 45 tons of contaminated water may have leaked into the ocean via a crack in the foundation of the building.<br/> A spokesman for Tepco said that the leak has been contained, and an investigation is underway into exactly how much water was lost.<br/> (SOUNDBITE) (Japanese) TEPCO SPOKESMAN JUNICHI MATSUMOTO, SAYING:<br/> "We are currently assessing the situation and based on the amount of water which has leaked into the ocean there may or may not be an effect on the environment."<br/> The Fukushima plant was struck by the massive tsunami triggered by the March 11 earthquake, knocking out its cooling systems and triggering a nuclear meltdown.<br/> Tepco and the Japanese government are still struggling to declare "cold shutdown" of the plant - one of the conditions which must be met before the 20-kilometre no-entry zone around the plant can be lifted.<br/> Nick Rowlands, Reuters
