Sky News Australia | Huge fire sparked by Defence exercise, says NSW Rural Fire Service The Australian A MASSIVE fire burning near Lithgow and the Blue Mountains in NSW was caused by explosives training being carried out by the Department of Defence, a probe has found. The Rural Fire Service said tonight an investigaion had found the training exercise ... NSW bushfires: 'Aggressive and high-risk strategies' avert catastrophe Live: Three emergency warnings issued in NSW New blazes as Australia firefighters battle torrid conditions |