Flight restrictions imposed over William and Kate's house

Flight restrictions over the country home of Prince William and his wife Kate came into effect Sunday, with the authorities citing security considerations, AFP reports.

Anmer Hall in Norfolk, eastern England, is where the royal couple spend most of their time with their children Prince George, two, and six month old Princess Charlotte.

From Sunday, most aircraft will be banned from flying over the ten-bedroom mansion at an altitude of under 2,000 feet (600 metre).

There are a few exceptions to the rule including the helicopter of Queen Elizabeth II, who has a house at nearby Sandringham, and air ambulances such as those flown by Prince William in his job.

In August, William and Kate wrote to the media warning that paparazzi attempts to photograph Prince George were becoming increasingly "alarming".

"In view of the need for security for the members of the royal family staying at or visiting Anmer Hall and at the request of the security services, the secretary of state (for transport) considers that flying should be restricted in the vicinity," the official order enforcing the move said.