Japan upgrades Fukushima leak to highest level in two years

TOKYO — Japan on Wednesday issued its highest-level warning over the crippled Fukushima plant since a tsunami triggered the nuclear crisis two years ago, saying there was “no time to lose” to seal a tank that has leaked 300 tonnes of radioactive water.

Nuclear regulators said the leak represented a level-three “serious incident” on the U.N.‘s seven-point International Nuclear Event Scale (INES), which measures radiation accidents.

“Something that we were very much concerned about has occurred,” Nuclear Regulation Authority chairman Shunichi Tanaka told a meeting in Tokyo. “We are in a situation where there is no time to lose.”
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