The operators of Japan's crippled Fukushima power plant said Wednesday that the temperature of reactor number two had dropped below 100 degrees Celsius as the site slowly recovers from the March 11 tsunami.
Tokyo Electric Power Co (Tepco) said the heat of the reactor fell to 99.4, following that of reactors one and three which dipped below 100 C (212 degrees Fahrenheit) a few weeks ago.
The firm recently introduced more efficient cooling methods at the plant, which houses six reactors, three of which were badly damaged.
The permanent cooldown of the three is essential in order to stablise the site devastated by the world's worst atomic disaster since Chernobyl.
There were explosions at the reactors after they went into meltdown following the earthquake and tsunami, which hit its cooling systems.
Japan has promised to achieve a cold shutdown of the plant by the year-end.
