The Queen displayed a calm demeanour as she spoke with officials in South Australia and witnessed the unveiling of a statue of herself during a video call.

The monarch's video call, which took place last Wednesday, was released by Buckingham Palace on the same day the Duke of Edinburgh, 99, was transferred to St Bartholomew's Hospital in London for 'testing and observation for a pre-existing heart condition' following a two-week stay at King Edward VII Hospital.  

When it was recorded, Philip was already in hospital for his treatment.