Celebrating the royal birth

People gather in front of Buckingham Palace to read the birth notification and celebrate the Duke and Duchess of Cambridge having a baby boy.

Royal baby

Members of the public try to take photos of an easel in the Forecourt of Buckingham Palace with the notification, to announce the birth of a baby boy, at 4.24pm to the Duke and Duchess of Cambridge at St Mary's Hospital in west London.

Royal baby born

The large waiting crowds cheers as the Queen's Press Secretary Ailsa Anderson with Badar Azim a footman place on an easel in the Forecourt of Buckingham Palace a notification, to announce the birth of a baby boy, at 4.24pm to the Duke and Duchess of Cambridge at St Mary's Hospital in west London.

Royal baby born

Members of the public queuing to look at the official announcement that the Duke and Duchess of Cambridge have had a baby boy, outside Buckingham Palace in London.

Royal baby born

Police officers encourage members of the public, who are queuing to look at the official announcement that the Duke and Duchess of Cambridge have had a baby boy, to keep moving along, outside Buckingham Palace in London.

Royal baby born

Police officers encourage members of the public, who are queuing to look at the official announcement that the Duke and Duchess of Cambridge have had a baby boy, to keep moving along, outside Buckingham Palace in London.

Royal baby born

Members of the public queuing to look at the official announcement that the Duke and Duchess of Cambridge have had a baby boy, outside Buckingham Palace in London.

Royal baby born

Members of the public queuing to look at the official announcement that the Duke and Duchess of Cambridge have had a baby boy, outside Buckingham Palace in London.

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Crowds gather outside Buckingham Palace to read the easel displaying the announcement of the son of The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Dan Dennison/Getty Images)

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Crowds gather outside Buckingham Palace to read the easel displaying the announcement of the son of The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Dan Dennison/Getty Images)

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Crowds gather outside Buckingham Palace to read the easel displaying the announcement of the son of The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Dan Dennison/Getty Images)

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Members of the public gather outside Buckingham Palace to read the easel displaying the announcement of the birth of a son to The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge has given birth to a baby boy yesterday at 16.24 BST. (Photo by Dan Dennison/Getty Images)

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Members of the public gather outside Buckingham Palace to read the easel displaying the announcement of the birth of a son to The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge has given birth to a baby boy yesterday at 16.24 BST. (Photo by Dan Dennison/Getty Images)

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Members of the public gather outside Buckingham Palace to read the easel displaying the announcement of the birth of a son to The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge has given birth to a baby boy yesterday at 16.24 BST. (Photo by Dan Dennison/Getty Images)

The Duke And Duchess Of Cambridge Announce The Birth Of A Baby Boy

LONDON, ENGLAND - JULY 23: Crowds gather outside Buckingham Palace to read the easel displaying the announcement of the son of The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge has given birth to a baby boy yesterday at 16.24 BST. (Photo by Dan Dennison/Getty Images)