British police have arrested former U.K. ambassador to the United States Peter Mandelson as part of an expanding misconduct investigation linked to his past ties with disgraced financier Jeffrey Epstein.
London’s Metropolitan Police confirmed that a 72-year-old man was taken into custody on suspicion of misconduct in public office. While authorities did not name the suspect, Mandelson — who is 72 — was filmed being escorted from his north London home by officers. Under U.K. law, police may detain a suspect for up to 24 hours without charge, extendable to 96 hours.
The arrest follows the recent detention of Prince Andrew, formally Andrew Mountbatten-Windsor, in a separate but related investigation concerning his association with Epstein. Andrew was released after 11 hours in custody as inquiries continue.
Investigators are examining allegations that Mandelson passed sensitive government information to Epstein roughly 15 years ago. He is not accused of sexual misconduct. The probe intensified after the U.S. Justice Department released more than three million pages of Epstein-related documents last month, triggering political shockwaves on both sides of the Atlantic.
Previously published emails showed Mandelson maintained contact with Epstein after the financier’s 2008 conviction for sex offences involving a minor. Additional documents released in January suggest Mandelson may have shared confidential or potentially market-sensitive government information in 2009 while serving as a senior British cabinet minister. Among the reported disclosures were discussions about raising funds following the 2008 global financial crisis, including the possible sale of government assets and lobbying efforts concerning taxes on bankers’ bonuses.
Mandelson served in multiple senior roles under former prime ministers Tony Blair and Gordon Brown, and later acted as the European Union’s trade commissioner. Known as a formidable strategist within the Labour Party, he earned the nickname “Prince of Darkness” for his political maneuvering.
He was appointed ambassador to Washington at the start of U.S. President Donald Trump’s second term but was dismissed in September by Prime Minister Keir Starmer after revelations about his ongoing friendship with Epstein became public. Mandelson later resigned from the House of Lords earlier this month, though he retains the honorary title Lord Mandelson.
The controversy has placed additional pressure on Starmer’s leadership, as critics question his judgment in appointing Mandelson despite past controversies. The government has pledged to release further documents in early March related to Mandelson’s appointment, though that timeline may now be affected by the ongoing criminal investigation.
As authorities continue their inquiries, the case represents one of the most significant international repercussions stemming from the newly released Epstein files, further entangling prominent political figures in their aftermath.

