Daniel Siad, whose name appears in the Epstein files thousands of times, had previously denied knowledge of the threat Jeffrey Epstein posed.

Daniel Siad, 69, was discovered on Monday in Colombes, a north-west suburb of Paris, the Nanterre prosecutor’s office confirmed to the BBC.

“An investigation to determine the cause of death was opened on Monday evening following the discovery,” the office said, adding that an autopsy will be carried out.

Siad’s name appeared thousands of times in the Epstein files released by the US government. He had previously denied any knowledge of the threat that Epstein posed.

Epstein victim Anya - not her real name - previously told the BBC that Siad had introduced her to Epstein.

“It was a complete set-up,” she said, describing Siad as “essentially a professional trafficker”.

During one e-mail to Epstein released in the files, Siad wrote in badly-spelled English: “In This busyness I feel like fisherman some time I cache quick, some time no fish”.