The Queen has been forced to cancel an official visit to Swansea on Saturday. The monarch was due to head to the Welsh city to mark St David's Day, but is reportedly suffering with gastroenteritis.
During the visit the Queen was to present leeks, the symbol of Wales' national day, to members of the 3rd Battalion but will now recuperate at Windsor Castle. As she rests, officials will assess if she is well enough to carry out next week's official visit to Rome.
The Queen and Prince Philip have been invited to the Italian capital by President Giorgio Napolitano to attend a private lunch and visit the Pantheon over a two day trip. A spokesman for the palace said the visit is still due to take place, but will be reassessed if the Queen's condition does not improve.
Over her 60 years as Britain's sovereign the 86-year-old has rarely cancelled her engagements due to ill-health.
Despite the absence of their royal guest, organisers in Swansea are still going ahead with their planned parade to Swansea's Guildhall, with Lord Lieutenant of West Glamorgan, Byron Lewis, taking over the Queen's ceremonial role
The Queen's illness follows her appearance at Buckingham Palace on Thursday where she presented honours to a number of Britain's 2012 Olympic winners including Jessica Ennis, Nicola Adams and Joanna Rothswell.