WELLINGTON, New Zealand – An explosion ripped through New Zealand’s largest coal mine Friday while about 30 people were underground, officials said. Five workers, dazed and slightly injured, stumbled to the surface hours later, while more than two dozen were missing. Police said that shortly before the blast the electricity went out in the mine, which may have caused ventiliation problems. That may have contributed to a buildup of gas underground. The explosion was powerful enough to blow one driver off his machine deep in a tunnel, and one mine safety expert said gas was a possible cause of the blast, although spokeswoman Barbara Dunn stressed it was too early to say why it occurred….
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Explosion hits NZ’s largest coal mine; 27 missing