Oliver Letwin, Britain's Cabinet Office Minister, has been seen dumping government documents into park bins near 10 Downing Street.
Letwin, who is seen as David Cameron's right-hand man and advises the prime minister on almost every aspect of government policy, was photographed by The Daily Mirror dumping official documents and letters on five separate occasions.
The paper says the West Dorset MP discarded more than 100 papers, including correspondence on terrorism and national security as well as constituents' private details, including home addresses and phone numbers.
On one occasion, Letwin was pictured handing the documents to a cleaner holding a bag. He tore the papers but did not shred them, meaning they were still legible.
The papers are said to date from July 2010 to September 2011, including five letters from the Intelligence and Security Committee, while another paper refers to links between al-Qaida and Pakistan and discusses how the government is working to "keep Pakistan stable and to minimise the risk of al-Qaida and others like them being able to use this extremely troubled part of the world as a base from which to attack the UK," the newspaper said.
Cameron, Deputy Prime Minister Nick Clegg and Chancellor George Osborne are all said to be mentioned in the dumped papers too.
The Mirror decribed the dumping as a "security breach", but a spokesperson for the minister claims none of the papers contain any sensitive material.
"Oliver Letwin does some of his parliamentary and constituency correspondence in the park before going to work and sometimes disposes of copies of letters there. They are not documents of a sensitive nature."