The Queen has written to the people of Australia, who she says will be "In her prayers" in coming months as the coronavirus pandemic continues to spread.
The message, received by Australia's Governor General David Hurley, has been shared on social media.
"At a time when people across the Commonwealth are experiencing a profound and rapid change to their lives, the pain of lost loved ones, and an understandable concern about the future, my thoughts are with all Australians," it reads.
"While it can be difficult to remain hopeful in such challenging times, especially following the summer's devastating bushfires and recent flooding, I am confident that the stoic and resilient nature of the Australian people will rise to the challenge."
The Queen went on to extend her "sincere admiration" to the Australians who continued to work helping those affected, provide essential services and caring for the most vulnerable.
"You will remain in my prayers in the coming months, with the resolute knowledge that with hard work, faith and unity, we will rise to the challenges ahead and ensure the health and vitality of all Australia's communities."
"I send my thanks and warmest wishes to you all."
The letter is signed off with 'Elizabeth R'.
The note was shared just hours after The Queen addressed the UK's response to Covid-19 in a rare broadcast.
The pre-recorded speech, aired on television and radio at 8pm, marked her fifth special televised address to the public.
The 93-year-old monarch spoke of the unprecedented nature of the coronavirus war being fought around the globe.
“I am speaking to you at what I know is an increasingly challenging time.
“A time of disruption in the life of our country: a disruption that has brought grief to some, financial difficulties to many, and enormous changes to the daily lives of us all."
She continued: “I also want to thank those of you who are staying at home, thereby helping to protect the vulnerable and sparing many families the pain already felt by those who have lost loved ones.
“Together we are tackling this disease, and I want to reassure you that if we remain united and resolute, then we will overcome it.
“I hope in the years to come everyone will be able to take pride in how they responded to this challenge.
“That the attributes of self-discipline, of quiet good-humoured resolve and of fellow-feeling still characterise this country."
She implored the country to consider how future generations will look back and admire the response "of this generation" for being "as strong as any".
She extended a heartfelt thanks to everyone on the NHS front line, along with those carrying out essential roles.
The Queen finished off her address by assuring the nation: "Better days will return, we will meet again".
The broadcast was recorded after the Queen’s personal doctors sought advice to mitigate any risk to the monarch or anyone else.
Sources with knowledge of the recording suggested the logistics and planning had been made “particularly difficult” due to the nationwide lockdown and fears over the risks to the Queen’s health after she entered isolation on government advice.
The White Drawing room used was specifically chosen so that an appropriate distance could be maintained while a lone cameraman was dressed from head to toe in the type of personal protective equipment (PPE) worn by medica treating infected patients.
A royal source said: “The Queen stands shoulder to shoulder with Britain and once again demonstrated why she is one of our greatest ever monarchs.”
