March 11 (UPI) — The British Cabinet Office has released files from its investigation into former ambassador to the United States Peter Mandelson on Wednesday as it digs into his ties to deceased sex trafficker Jeffrey Epstein.

The first batch of documents revealed that Mandelson may have been briefed on classified information before being given security clearance when he was appointed as ambassador. They also show that he requested a large government payout when he was terminated last year.

Mandelson was arrested and then released last month in London over suspicion of misconduct in public office. The allegation stems from emails released in the Epstein files in which Mandelson appears to be sharing market-sensitive confidential information with Epstein.

Documents released by the Cabinet Office share some details after his appointment as ambassador in December 2024. Within days of his being appointed, the Foreign, Commonwealth and Development Office offered to brief Mandelson on highly classified information while he was still being vetted.

Emails about the briefing were shared Dec. 23, 2024, about three days after the announcement of Mandelson’s appointment. It was not until Jan. 30, 2025, that Mandelson received an email confirming that he had cleared the vetting process.

It was in this email that he received a formal offer of employment.

When Mandelson was terminated from his position in September, he requested to be paid the full amount on his contract — more than 500,000 euros or $578,625. Instead, he was paid 75,000 euros or $86,793.75 to terminate the contract.

“As the documents show regarding his severance payment, Peter Mandelson initially requested a sum that was substantially larger than the final payment, not just two or even three times, but more than six times the final amount,” said Darren Jones, chief secretary to the prime minister at the Cabinet office.

“Despite the fact that he was withdrawn from Washington because he had lost the confidence of the prime minister, the government obviously found that to be inappropriate and unacceptable.”