The Queen will celebrate her 87th birthday tomorrow privately, Buckingham Palace has said, with Her Majesty and the Duke of Edinburgh believed to be staying at Windsor Castle.
The monarch's milestone - in a year which in June marks the 60th anniversary of her coronation - will be honoured across the UK with traditional gun salutes fired in celebration.
But as her birthday falls on a Sunday this year the military tributes will be held on Monday.
Queen Elizabeth II has two birthdays - her actual birthday celebrated on April 21 and her official one in June, which is marked with the Trooping the Colour parade.
More top news
Trials of a new prenatal test for Down's Syndrome have been launched to see if it should be offered to women on the NHS
Zayn Malik has spoken for the first time since quitting 1D saying he was upset to let fans down but that it wasn't "real" to him anymore
Coronation Street actress Samia Ghadie has announced she is expecting her first child with ice dancer Sylvain Longchambon.