The Queen says the victims of disastrous bushfires in NSW and Queensland are in her thoughts and prayers.
Blazes in NSW last week killed two people and destroyed 64 homes and 150 outbuildings while those in Queensland destroyed one home.
The 93-year-old monarch has sent a letter of condolence to NSW Governor Margaret Beazley and Queensland Governor Paul de Jersey.
"Prince Philip and I have been deeply saddened to hear of the tragic loss of life and property caused by bushfires affecting communities and businesses across northern New South Wales and South East Queensland," the Queen wrote.
"I am heartened that once again the richness of spirit that defines Australians has drawn people together to support those in need.
"Our thoughts and prayers are with the family and friends of the victims."
A total fire ban has been declared over large swathes of northern NSW on Thursday, with the forecast for hot and windy weather again putting authorities on red alert.
Australian Associated Press