Prince William and Kate Middleton want their privacy.

As the couple settle into their lives after the birth of their second child, daughter Princess Charlotte, they are asking the media - especially paparazzi - to respect their privacy. 

Norfolk police handed out a letter to the media "found operating on or around the Sandringham estate" warning them to stay away from Prince George and their newborn.

BBC News posted a photograph of the letter, which reads:

"Dear Sir/Madam, As you are aware, Anmer Hall is part of the Sandringham Estate, which is a private estate and whilst in residence, members of the Royal Family and their guests have a more than reasonable expectation of privacy.

"There have in the past been a number of intrusions into the privacy of the Royal Family, which in the main have been as a result of professional photographers using long distance lenses, not only to observe the Royal Family, but also to photograph them going about their activities on the Estate.

"Following warnings given to photographers and the photographic agencies involved, the position has greatly improved. However, we would remind you again of the position. The Sandringham Estate trusts that there will not be a need to take any further action other than bringing these points to your attention.

"With the above matters in mind, we would reiterate the clear request for acts of harassment and breaches of privacy to cease.

"Communications Secretary to TRH The Duke and Duchess of Cambridge."

A palace spokesperson told the BBC that the letter was issued to explain that "the warm-hearted and understandable interest in the Royal Family and the Duke and Duchess of Cambridge needs to be balanced with their right to private family life this is especially important for a family with very young children."

The royal family has temporarily relocated to a 10-bedroom home located on Queen Elizabeth II's Sandringham estate in Norfolk, north of London.