The son of world motor sport chief Max Mosley has been found dead at his London home of a suspected drugs overdose, police and media reports said on Wednesday.
The body of Alexander Mosley, 39, an economist, was found at his home in Notting Hill, west London. The Sun newspaper said he was slumped in a room after a suspected overdose.
London's Metropolitan Police said in a statement: "The deceased is a man in his late 30s. We believe we know the identity of the deceased and are in the process of informing next of kin."
"A post-mortem will take place in due course."
Max Mosley, the son of 1930s British fascist leader Sir Oswald Mosley, won 60,000 pounds in damages last July after it alleged he had taken part in a Nazi-themed sex orgy.
A judge ruled there was no Nazi theme to the orgy, a video of which was obtained by a newspaper.