Mine disaster leaves nation in mourning

The close-knit community of Greymouth is struggling through its darkest hour in the wake of a second mine explosion that has left no hope of survival for 29 men trapped underground.

Those presumed dead include Australians William Joynson, 49, and Joshua Ufer, 25, who are both from Queensland.
New Zealand prime minister John Key has held a press conference and described this afternoon's events as a national tragedy.
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