Royal baby birth lights up London: Landmarks turn blue in honour of Duke and Duchess of Cambridge's new prince

London landmarks were lit up overnight to celebrate the birth of the Duke and Duchess of Cambridge’s new son.

Tower Bridge and the Golden Jubilee Bridges were among the capital's iconic hotspots illuminated in blue to mark the birth of the new prince.

The London Eye glowed with the colours of the Union Jack as people across the country rejoiced at the arrival of the Royal baby on St George's Day.

The BT Tower in Fitzrovia projected the words “It’s a boy” at the top of the building.

Prince William yesterday revealed that the couple are very happy with the safe arrival of their second son, who was born at 11.01am at the Lindo Wing of St Mary’s Hospital in Paddington.

He also said that Prince George and Princess Charlotte are “delighted” at the birth of their baby brother and joked he and Kate would have “thrice the worry now”.

The Duchess of Cambridge was admitted to the Lindo Wing for the third time in recent years yesterday morning before giving birth just hours later.

She and Prince William introduced the newborn to eagerly awaiting press and public outside the hospital’s front door just before 6pm.

Minutes after the swift photocall, the couple took their new baby home to Apartment 1A in Kensington Palace to begin life as a family of five.

London’s lit-up landmarks accompanied the many congratulatory messages the royal couple received from across the world.

One message from former US first lady Michelle Obama read: “Barack and I are thrilled to congratulate The Duke and Duchess of Cambridge on their newest arrival! We hope to meet him soon for a Kensington Palace pajama party. I’ll wear my robe!”

The name of the baby is likely to be announced within the next 48 hours. Popular choices among bookies include James, Albert and Arthur.