The building is the base for the Home Office, responsible for policing in England and Wales and national security, and MHCLG, which is responsible for housing and planning policy in England.
Tory shadow Cabinet Office minister Alex Burghart said: “This is a serious incident that demands an urgent investigation.
“The discovery of a hidden camera inside a building that occupies the Home Office and other departments raises questions about the security of government departments and those seeking to undermine them.
“The public deserves answers. We urgently need to know who was responsible, how long this device was in place and whether any sensitive or classified information has been compromised.”
The Home Office declined to comment. The prime minister’s spokesman declined to comment, referring reporters to the earlier statement from MHCLG.
