The Duke and Duchess of Cambridge welcomed a baby boy, who will be known as the Prince of Cambridge, weighing 8lbs 6oz at 4.24pm this afternoon (Monday, 22 July) and announced the news via a press release around four hours later. No name has been revealed yet.
In a very brief statement, the proud new dad said that he and Kate "could not be happier". He will remain by Kate's side in hospital overnight.
Earlier speculation had suggested that William would make a statement from the steps of the Lindo Wing at the St. Mary's Hospital in Paddington, London this evening, but it's now thought this will not happen.
A palace spokesman said this morning the Duchess travelled by car from her London home to the hospital accompanied by Prince William and was admitted to hospital just before 6am "in the early stages of labour".
An updated statement said "things are progressing as normal".
The next statement we had from the palace was at around 8pm when it was revealed they would announce the birth via a press release rather than the traditional method of taking the birth notice from the hospital to Buckingham Palace.
The royal birth was overseen by the Queen's former gynaecologist Marcus Setchell.
In a press release at around 8.30pm, the palace said: "Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 4.24pm. The baby weighs 8lbs 6oz.
"The Duke of Cambridge was present for the birth. The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, Prince Harry & families have been told and are delighted."
"Her Royal Highness and her child are both doing well and will remain in hospital overnight."
The birth notice, confirming the baby's gender and time of birth, was then taken by a royal aide to Buckingham Palace, where hundreds flocked to get a glimpse.
Prince William's father Prince Charles issued a statement this evening on behalf of himself and Camilla, Duchess of Cornwall saying: "Both my wife and I are 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.
"Grandparenthood is a unique moment in anyone's life, as countless kind people have told me in recent months, so I am enormously proud and happy to be a grandfather for the first time and we are eagerly looking forward to seeing the baby in the near future."
The Queen and Prince Phillip have also issued a very brief statement, saying they are "delighted" by the arrival.
Celebrities congratulate Kate and WIlliam:
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