Andrew Mountbatten-Windsor, who was stripped of his royal titles last year, features heavily in the latest tranche of the Epstein files

Keir Starmer has said Andrew Mounbatten-Windsor should testify before the US Congress about his links to the late child sex offender Jeffrey Epstein.

The prime minister, who is in Japan for a meeting with its premier, Sanae Takaichi, was asked by journalists if the former prince should apologise to the disgraced financier’s victims and give evidence about what he knew about his crimes.

Mounbatten-Windsor, who was stripped of his titles last year amid the fallout from his friendship with the billionaire, features heavily in the latest tranche of Epstein files, released on Friday by the US justice department.

The king’s brother appears to be pictured crouching over a woman who is lying on the floor. The cache of documents also includes emails which indicate Mountbatten-Windsor invited Epstein to Buckingham Palace in September 2010, two years after he was convicted of soliciting girls as young as 14 for sex.