London police launch criminal investigation into former UK ambassador to US with alleged Epstein ties

"The Met will continue to assess all relevant information brought to our attention as part of this investigation and won't be commenting any further at this time," she added.

Mandelson resigned Sunday from the governing Labour Party amid allegations he received $75,000 in payments from Epstein and shared sensitive government information after the 2008 financial crisis.

Starmer on Monday requested an urgent review of Mandelson's communications with Epstein while he was in office.

The House of Lords announced on Tuesday Mandelson is stepping down.

"He will cease to be a member tomorrow," the House of Lords told Fox News Digital. "We have no comment on any possible police investigation."

The Associated Press contributed to this report.