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

Police are investigating a burglary minutes from Prince William and Princess Kate's house and within the Windsor Castle estate. A pick-up truck and a quad bike were taken in the night time raid through the closest exit to William and Kate's Adelaide Cottage.

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Two men reportedly climbed a six foot fence during the night to steal farm vehicles. The crooks are said to have then driven off in a pick-up truck and on a quad bike that had been stored in a barn.

Masked burglars have reportedly broken into the Windsor Castle estate overnight, while Prince William, Kate Middleton and their children stayed in Adelaide Cottage nearby

The masked thieves went on to steal farm vehicles from Shaw Farm, a working farm on the sprawling Royal estate, before they crashed into a security gate while fleeing.

Masked men broke into the Windsor Castle Estate while Princess Kate and Prince William were at home. Two men scaled a six-foot fence at night to steal farm vehicles, according to new reports in The Sun.