State of Emergency Declared at Second Japenese Nuclear Plant

The International Atomic Energy Agency said today that Japan has declared a state of emergency at a second earthquake-ravaged nuclear plant after measuring higher-than-permitted levels of radiation.

The IAEA says the source is being investigated, but all three reactors at the Onagawa plant are currently under control. Japan also said earlier attempts to cool the No. 3 reactor at the Fukushima Dai-ichi plant had failed. At least 22 people around the Fukushima Dai-ichi have been contaminated by radiation.

Japan said earlier attempts to cool the No. 3 reactor at the Fukushima Dai-ichi plant had failed. Sea water is also being used to cool the plant's No. 1 reactor.

Sea water is corrosive and is being used as a last resort.

Chief Cabinet Secretary Yukio Edano also said Sunday that a hydrogen explosion could occur at Unit 3 of the Fukushima Dai-ichi nuclear complex, the latest reactor to face a possible meltdown. That follows a blast the day before in the power plant's Unit 1, and operators attempted to prevent a meltdown there by injecting sea water into it.