Prince William and his wife, Kate Middleton, the Duke and Duchess of Cambridge, have a special panic room at their Kensington Palace residence, Global Citizen magazine reports.
According to the media outlet, the panic room at Kensington Palace includes an escape tunnel and is equipped with an air filtration system for “guarding against biological warfare”.
The current head of the British royal family, Queen Elizabeth II, reportedly had panic rooms “encased in 18in thick, bullet-resistant, fire-retardant steel walls” installed at Windsor Castle and at Buckingham Palace about a decade ago.
These shelters are meant to protect their occupants from terrorist attacks, bombs and even poison gas, and are stocked with enough food and water to allow the inhabitants within to last for about a week.