A man has been arrested on suspicion of murder after an 82-year-old man was found dead at a house in north-west London.
Officers arrested the 52-year-old within minutes after being called to West End Lane, which runs between Kilburn and West Hampstead, at about 11:25 GMT on Thursday following welfare concerns.
Paramedics pronounced the victim dead at the scene. Officers are trying to identify the 82-year-old and inform his family, the Metropolitan Police said. A post-mortem examination will take place in due course, the force added.
Ch Supt Jason Stewart said: “A team of detectives are working quickly to establish the full picture surrounding this man’s death.”