Police are searching for suspects who broke into the primary residence of Prince William, Catherine, Princess of Wales, and their family.

British police are investigating a burglary on the Windsor Castle estate, fueling concerns about security at the royal residence west of London.

In October, burglars broke into to a farm building on the Windsor Castle estate, stealing two vehicles. No suspects have been identified.

Thieves broke into the grounds of Windsor Castle and stole two vehicles from royal land, police said, in a major breach of security.

Burglars broke into the grounds of Britain's royal Windsor Castle in October and stole two vehicles from a barn, Thames Valley Police said.

Burglars broke into Windsor Castle while Kate Middleton and Prince William slept at their home nearby—details here.

The intruders entered a farm building on the castle estate last month and stole an Isuzu pickup and a quad bike, according to the local police.

Prince William and Kate and their three children were reported to be at their nearby home at the time of the break-in.

Windsor Castle has been raided by two masked men, whilst Prince William, Kate Middleton, and their children slept in the estate's Adelaide Cottage.

Burglars broke into the grounds of Britain's royal Windsor Castle in October and stole two vehicles from a barn, Thames Valley Police said.

King Charles and his wife Camilla were not in the estate at the time of the incident but Prince William and his family were believed to be at Adelaide Cottage, part of the Windsor Castle estate, the Sun reported.