People can now enjoy a cat's eye view of the Treasury thanks to the ministry's chief mouser, Gladstone.

The department has attached a camera to the feline, capturing the corridors of power ahead of the Open House London event this weekend (17 September), which will see the capital's buildings opened up to the public.

There is no sign of new Chancellor Philip Hammond, but Gladstone, the third Westminster cat after Larry (Number 10) and Palmerston (Foreign Office), does catch some civil servants chatting.