Around 70,000 people packed out Australia's ANZ stadium on Sunday, to show their support for communities that have been devastated by the country's recent bushfire crisis.

Flights in and out of Australia's Melbourne airport were interrupted on Wednesday due to dense bushfire smoke reducing visibility and creating dangerous conditions.

The Australian bushfires have engulfed more than 6 million hectares of bush, forest and parks, which is twice the size of Belgium.

Eight people have been confirmed dead as the result of bushfires in southeast Australia this week, with several others still missing and hundreds of homes lost.

Two more people were confirmed dead and several more remain missing in Australia on Tuesday as the result of severe bushfires in the country's southeast.