Below is a reproduction of the International Atomic Energy Agency’s latest update. http://j.mp/h87Wb3
Status of Fukushima Daiichi nuclear power plant
Japanese authorities have notified the IAEA that efforts to restore power for the Fukushima Daiichi nuclear plant are on-going. As of 19 March at 21:46 UTC, the power centre at unit 2 had received electricity. Work to restore electricity to units 3 and 4 is continuing.
White smoke was reported seen emanating from unit 2 on 21 March at 9:22 UTC. Grayish smoke was reported seen emanating from unit 3 at 6:55 on 21 March, and this was reported to have ‘died down’ two hours later. All workers at units 1 through 4 evacuated after the smoke at unit 3 was seen. The IAEA is seeking further information at this time on the status of workers at the site.
Japanese authorities have also reported that water has been sprayed over the Common Spent Fuel Pool; this started on 21 March at 1:37 UTC. The IAEA is seeking further information on this development and will report further as updates are received from Japan.