Celebrations are taking place around the UK on the day the Queen turns 90.
Crowds of cheering people lined the streets in Windsor as the monarch took part in a walkabout, and royal gun salutes have been fired from each of the UK's capital cities.
The Queen, who was accompanied by the Duke of Edinburgh during her tour in Windsor, was presented with a birthday cake at the Guildhall by the Great British Bake Off champion Nadiya Hussain, who had created an orange drizzle cake with a butter cream and marmalade filling.