Queen 'saddened' by continuing bushfires

The Queen says she is deeply saddened by Australia's bushfire crisis and praised emergency workers on the front line.

The 93-year-old monarch has sent a message of condolence to Governor-General David Hurley and the governors of NSW, Queensland, Victoria, and to all Australians.

"I have been deeply saddened to hear of the continued bushfires and their devastating impact across many parts of Australia," the Queen wrote in a statement released by Buckingham Palace on Saturday night local time.

"My thanks go out to the emergency services, and those who put their own lives in danger to help communities in need.

"Prince Philip and I send our thoughts and prayers to all Australians at this difficult time."

Six people remain missing in Victoria and dozens more properties are feared to have been lost in NSW after another long night for firefighters.

A pilot and his son were caught by flames and killed on South Australia's Kangaroo Island as they were returning to their property after fighting a fire.

The Queen sent condolences in October to the NSW and Queensland governors after bushfires killed two people and destroyed dozens of homes.