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.

Police are investigating a break-in on the grounds of Windsor Castle, near the family home of Prince William and his wife Kate, the Princess of Wales. The suspects were able to enter a building and steal two items from the royal family estate in Windsor, England, on Oct. 13, a spokesperson for the Thames Valley Police told ABC News.

Two suspects broke into a farm on the Windsor Castle estate, home to Prince William, Catherine, Princes of Wales and their family, last month.

The offenders entered a farm building and and “made off with a black Izuzu pickup and a red quad bike,” Thames Valley Police told NBC News in a statement Monday.

A burglary occurred at Windsor Castle last month on October 13, People reported via The Sun. The masked men reportedly had their sights set on stealing farm equipment and used a stolen car to crash through the gate of the property on the way out. The incident took place at the Shaw Farm on the estate.

Two masked men are reported to have scaled a six foot fence to steal farm vehicles from the Windsor Castle estate while Kate Middleton and Prince William were sleeping nearby with their three children