Investigations are underway after a roof collapsed at Illawarra Coal’s Dendrobium Mine in Mount Kembla yesterday.
In a statement, BHP Billiton subsidiary Illawarra Coal confirmed there had been a "localised roof fall in a roadway" at the site.
Details of the collapse remain unclear, however a spokeswoman said no one was injured as a result of the collapse with all 72 employees evacuated and accounted for.
Illawarra Coal president, Troy McDonald said the priority at the time of the incident was to ensure that all employees were safe and he commended everyone for their efforts.
"At this time it is not anticipated that there will be interruption of supply of coal to customers," McDonald said.
This is the third roof fall in four years at the Dendrobium underground coal mine.