The eastern European man, who was in his 40s, was discovered at the Marriott Hotel, near Oxford Street, on Sunday.

Detectives found the body after police at a Eurostar terminal in Kent came across bloody clothes and documents from the four-star hotel.

The exact cause of death is not known, but a murder inquiry is under way.

A post-mortem examination has been carried out, but a spokesman for Scotland Yard said officers were awaiting the results of further tests.

The man is thought to have checked into the hotel under a false identity.