Det Ch Insp Damian Allain, who is leading the investigation, said: "It is very early in our investigation and we are trying to establish the full circumstances of this death.

“One line of enquiry is that the dead man may be a missing person and we would like to hear from anyone who has seen people coming and going into 251a Stanstead Road.

“If you have any information please call the incident room on 020 8721 4805 or call Crimestoppers anonymously on 0800 555 111.”