2310More from the Tokyo Electric Power Company: It says the ability to control pressure in some of the reactors at Fukushima-Daini has been lost. Pressure is stable inside the reactors, but rising in the containment vessels, a company spokesman says.
Japan declares a state of emergency at the Fukushima-Daini power plant, where three of its reactors failed, the Associated Press reports. It says a state of emergency is already in place at the nearby Fukushima-Daiichi plant, where two reactors failed. People living within a 3km (two-mile) radius of the Fukushima-Daini nuclear plant are told to evacuate, the AFP news agency reports.
Reaction to events at two nuclear power plants 250km (160 miles) north east of Tokyo, where states of emergencies have been declared. Environmental group Greenpeace tells the AFP news agency "Japan is in the middle of a nuclear crisis with potentially devastating consequences". Campaigner Jan Beranek adds: "While the immediate focus is on minimising radiation release and keeping local people safe, this is yet another reminder of the inherent risks of nuclear power."
Tokyo Electric Power, which runs the two stricken nuclear power plants, confirms it has released a small amount of vapour into the atmosphere to reduce pressure on one of its reactors. It tells AFP there are no health risks.
Tokyo Electric Power releases more radioactive vapour from a second sticken reactor, AFP reports.