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Unintentional detonation of explosive device

The Resources Regulator has issued an investigation information release following the deaths of 2 workers at Endeavor Mine in Cobar, NSW on Tuesday 28 October 2025.

Three workers were in the underground mine workings at the mine about 3.30 am, preparing a ballistic disc to clear a hang-up in a drawpoint. 

While the 3 workers were preparing the ballistic disc underground, it unintentionally detonated resulting in 2 workers suffering fatal injuries, while a third worker was seriously injured. 

The Resources Regulator has commenced an investigation to determine the cause and circumstances of the incident and will issue a report at the end of the investigation.

Read the full investigation information release (PDF, 1.13 MB)

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