Queen Elizabeth back at desk after first night in hospital in years

FILE PHOTO: Britain's Queen Elizabeth attends a Service of Thanksgiving to mark the Centenary of the Royal British Legion at Westminster Abbey, London, Britain October 12, 2021. Frank Augstein/Pool via REUTERS

LONDON (Reuters) -Britain's Queen Elizabeth, 95, was back at her desk at Windsor Castle on Friday after she spent a night in hospital for the first time in years for what Buckingham Palace termed "preliminary investigations".

The world's oldest and longest-reigning monarch stayed in hospital overnight on Wednesday but returned to Windsor Castle to the west of London the following day, with officials saying she was in good spirits and back at work.