NHS staff, firefighters, transport workers and teachers will be first in the queue for thousands of new homes being built across the capital.
Firefighters are investigating the source of the explosion, which saw six other homes evacuated early on Saturday morning.
Exclusive: The Fire Brigades Union has called for weekly coronavirus testing as crews continue work on the frontline of the pandemic.
A prosecutor confirmed the incident is being treated as a "criminal act", but gave no further details.
Specialist firefighters are working to safely recover her body.
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The firefighters had been flown into Australia as part of an international effort to tackle the devastating bushfires.
Almost 200 'unprecedented' fires are still raging.
Around 80 firefighters were called to the fire on Monday night.
A total of 20 fire engines and some 125 firefighters were sent to the scene.