Well-wishers across the globe have been celebrating the birth of the Duke and Duchess of Cambridge's baby boy, the third heir to the British throne.
The baby, who will be known as the Prince of Cambridge, was delivered at 4.24pm on Tuesday afternoon, weighing 8lb 6oz.
The world had their first glimpse of the newborn prince last night but will have to wait a little longer to hear what he will be christened.
The Duke and Duchess left the private Lindo Wing, of St Mary's Hospital, west London, yesterday evening after briefly posing for waiting photographers and answering a few questions from journalists.
The Royal couple said they were very emotional and Prince William insisted that the baby had inherited his mother's looks.
Meanwhile the Prince of Wales said he and the Duchess of Cornwall were "overjoyed at the arrival of my first grandchild".
"It is an incredibly special moment for William and Catherine and we are so thrilled for them on the birth of their baby boy," he added.
People across the globe are eagerly awaiting the name of the newborn Prince. George is the bookmakers' favourite, followed by James and Alexander.
The baby boy was delivered in the Lindo Wing of St Mary's Hospital, where both Prince William and Harry were born.
The Duke and Duchess, both 31, travelled to the hospital by car without a police escort, arriving at 6am and Prince William was at the wheel when they left last night.
News of the birth was issued in a statement by Kensington Palace at 8.30pm.
A notice signed by the Queen's gynaecologist Marcus Setchell, who led the medical team that delivered the baby, was displayed on an easel in the forecourt of Buckingham Palace.
The baby boy becomes the third in line to the throne, pushing William’s brother Harry down to fourth.
Prime Minister David Cameron said last night: "It is an important moment in the life of our nation but I suppose, above all, it's a wonderful moment for a warm and loving couple who've got a brand new baby boy".
Various celebrations took place across the capital including a salute by The King's Troop Royal Horse Artillery and Honourable Artillery Company.