The state and territory leaders will also try to come up with an acceptable definition of a COVID-19 hotspot.

The New South Wales Premier, Gladys Berejiklian, says Queensland's criteria for re-opening its border with her state are too onerous. New South Wales recorded 12 new cases, including three where the source of the infection is not known.

Victoria Police Assistant Commissioner Luke Cornelius as the National Cabinet meets Friday Sept 4 with border closures back on its agenda. Source: AAP