NSW Police were called to the Riverstone venue on Tuesday morning, after a restaurant owner discovered an unconscious worker.
Assistant Commissioner Gavin Wood said five officers attempted CPR on the man, “to the point where they felt there was something a little amiss… in the environment, including an odour”.
Details
All five officers were taken to hospital for treatment relating to a gas leak, as well as the restaurant owner and his son.
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The 25-year-old could not be revived and died at the scene.
Fire and Rescue NSW have since detected “extremely high levels” of carbon monoxide at the venue.
Chief Superintendent Jeff Hogan said crews “are continuing to undertake advanced testing… to identify a source or a potential cause”.







