Reaction from The Mall to Prince Philip missing concert
4 June 2012 Last updated at 17:48 BST
The Duke of Edinburgh has been taken to hospital with a bladder infection, to the disappointment to members of the public gathered outside Buckingham Palace for the Diamond Jubilee concert.
One member of the public, speaking to the BBC's Tim Willcox, said the news was "sad for the Queen because it is her special weekend".
Prince Philip, who is 90, has been taken to the King Edward VII Hospital in London from Windsor Castle as a "precautionary measure".
He will miss the Diamond Jubilee concert at the palace - being attended by 12,000 people - but the Queen will still go, a palace spokesman said.