Authorities suspect two fires that were started on Tuesday in Turramurra on Sydney's north shore and Loftus in the Royal National Park, were deliberately lit.
NSW Rural Fire Service commissioner Shane Fitzsimmons has called for anyone caught lighting fires to spend time behind bars, as authorities investigate to find the potential culprit.
Police have set up a crime scene in Turramurra as they work to establish the cause of the emergency bushfire, while the RFS also believe a fire with multiple ignition points. in the Royal National Park at Loftus was also suspicious