Explosion at Japan nuke plant

IWAKI, Japan – An explosion at a nuclear power station Saturday destroyed a building housing the reactor, but a radiation leak was decreasing despite fears of a meltdown from damage caused by a powerful earthquake and tsunami, officials said.

Government spokesman Yukio Edano said the explosion destroyed the exterior walls of the building where the reactor is placed, but not the actual metal housing enveloping the reactor.

That was welcome news for a country suffering from Friday's double disaster that pulverized the northeastern coast, leaving at least 574 people dead by official count.

The scale of destruction was not yet known, but there were grim signs that the death toll could soar. One report said four whole trains had disappeared Friday and still not been located. Local media reports said at least 1,300 people may have been killed. YAHOO/AP

Note: "four whole trains had disappeared"