Video: The crowds gather at St Mary's hospital for the royal baby

Helicopter footage of the huge crowd of journalists camped outside St. Mary's Hospital ahead of the birth of the Royal baby.

Further updates on the royal baby:

Duchess of Cambridge goes into labour at London's St Mary's Hospital

How the announcement of the royal birth will be made

Royal baby media watch: the humour and the hysteria

Five things we didn't need to know about Kate's pregnancy

In pictures: the media scrum

The royal baby name game