Almost 2,000 houses have been destroyed in Australia’s months-long bushfire crisis, officials say, as crews prepare frantically for worsening conditions.
After ferocious conditions last week, firefighters are using milder weather to boost containment lines around fires engulfing south-eastern Australia.
Temperatures are likely to soar again on Friday, prompting fears that two fires could form a new “mega blaze”.
At least 25 people and millions of animals have died since September.
Australia is fighting an unprecedented bushfire season, fuelled by record temperatures and widespread drought.
On Tuesday, New South Wales NSW officials said fires there had claimed 1,588 homes and damaged 653 more.
About 200 homes have been destroyed in neighbouring Victoria, adding to more than 100 lost in other states.
The Insurance Council of Australia estimated the damage bill had reached A$700m (£370m; $485m), but said it expected the cost to rise significantly.
With smoke tormenting cities including Canberra, Sydney and now Melbourne, doctors have warned of increased respiratory dangers – especially to vulnerable people, including pregnant women.
On Monday, the Bureau of Meteorology warned that visibility in Melbourne was less than 1km (0.62 miles) in many parts of the city and its surroundings.
Rain has fallen in NSW and Victoria and temperatures have dropped – but officials have warned that blazes will “take off” again.
They fear large blazes in both states could merge, creating unpredictable fire fronts and posing heightened danger to lives and homes.
“There is no room for complacency,” NSW state Premier Gladys Berejiklian warned on Monday.
Hundreds of properties were destroyed at the weekend. Rural towns and major cities saw red skies, falling ash and smoke that clogged the air.
The easing of conditions has allowed valuable supplies to be taken to affected areas.
The army said it had sent supplies, personnel, and vehicles to Kangaroo Island near the city of Adelaide in South Australia. The island has been devastated by bushfires, with two people killed last week.
The NSW Rural Fire Service said it had more than 2,600 people deployed on Tuesday to bolster containment lines between fires and populated areas.
Victoria Emergency Management Commissioner Andrew Crisp has warned people to expect “a changing, dynamic situation” later in the week