Satellite image shows scale of Australia bushfires
22 October 2013 Last updated at 15:11 BST
Images from Nasa's Aqua satellite show the scale of the bushfires burning through New South Wales, Australia.
Smoke from the blazes is affecting major cities including Sydney, where air quality is up to 50 times worse than usual.
Rebecca Donovan reports.
Image courtesy AFP/Nasa/Jeff Schmaltz