Kyodo reports that a fire broke out again in reactor 4 building
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By the way, reactor 4 doesn’t have any fuel in it:
“The IAEA can confirm the following information about the status of the Fukushima Daiichi nuclear power plant:
Unit 4 was shut down for a routine, planned maintenance outage on 30 November 2010. After the outage, all fuel from the reactor was transferred to the spent fuel pool.
Units 5 and 6 were shut down at the time of the earthquake. Unit 5 was shut down as of 3 January 2011. Unit 6 was shut down as of 14 August 2010. Both reactors are currently loaded with fuel.”