New Zealand Pike River mine disaster 'preventable'
A gas blast at a mine in New Zealand that killed 29 workers was preventable, an investigation has found, with multiple warnings ignored.
Health and safety systems at the Pike River mine were inadequate, and reports of excessive methane levels were "not heeded".
A drive for production "before the mine was ready" created the circumstances for the tragedy, the report found.
The mining disaster in 2010 was New Zealand's worst in almost a century.
"The Pike River tragedy was preventable but administrative and regulatory reforms are urgently needed to reduce the likelihood of further tragedies," the Royal Commission report said.
Minister for Labour Kate Wilkinson resigned shortly after the report was released. The disaster "happened on my watch", she said, calling stepping down the right thing to do.
The commission found that the 19 November blast at the mine, on the west coast of the South Island, was caused by a methane gas explosion.
The mine was new, and the systems and infrastructure necessary to safely produce coal "had not been completed". Ventilation and methane drainage systems "could not cope with everything the company was trying to do" - and numerous warned were ignored.
"In the last 48 days before the explosion there were 21 reports of methane levels reaching explosive volumes, and 27 reports of lesser, but potentially dangerous, volumes," the report said.
"The reports of excess methane continued up to the very morning of the tragedy. The warnings were not heeded."
Workers were exposed to "unacceptable risks" because health and safety was not adequately addressed in a drive to achieve production.
The report also highlighted failings by the Department of Labour, saying it did not have the "focus, capacity or strategies to ensure that Pike was meeting its legal responsibilities".
It called for a new regulator to be established to focus solely on health and safety issues and for mining regulations to be updated.
Prime Minister John Key apologised to relatives of those who died for regulatory failures, but hit out at the mining company, saying it "completely and utterly failed to protect its workers".
Last month the mine's CEO Peter Whittall pleaded not guilty to labour violation charges. A contractor at the mine admitted three health and safety charges in July. The Pike River Coal company is not contesting health and safety charges.