NEW YORK (AP) — Britain’s Prince Andrew has provided “zero cooperation” to the American investigators who want to interview him as part of their sex trafficking probe into Jeffrey Epstein, a U.S. prosecutor said Monday.

Speaking at a news conference outside Epstein’s New York mansion, U.S. Attorney Geoffrey Berman said prosecutors and the FBI had contacted Andrew’s lawyers and asked to interview him.

“To date, Prince Andrew has provided zero cooperation,” said Berman, the top federal prosecutor in Manhattan.

Buckingham Palace declined to comment.

Andrew announced last year that he was withdrawing from his royal duties amid renewed public attention on a woman’s claim that she had several sexual encounters with the prince at Epstein’s behest, starting when she was 17.

Virginia Roberts Giuffre says that after meeting Epstein in Florida in 2000, the millionaire flew her around the world and pressured her into having sex with numerous older men, including Andrew, two senior U.S. politicians, a noted academic, wealthy financiers and the attorney Alan Dershowitz, who is now part of President Donald Trump’s impeachment defense team.

All of those men have denied the allegations. Epstein killed himself in his jail cell last summer while he was awaiting trial on sex trafficking charges.

Giuffre has said she had sex with Andrew three times, including once in London in 2001 at the home of Epstein’s girlfriend, Ghislaine Maxwell.

It isn’t clear what legal exposure Andrew might have in the case, if any. The age of consent for sex is 16 in England and 17 in New York.

However, Giuffre claims that she was paid by Epstein for her sexual encounters with Andrew. That could constitute a violation of U.S. sex trafficking laws if she was under age 18 or was coerced into unwanted sex acts.

Andrew, who is eight in line for the British throne, and Maxwell have both denied any knowledge that Epstein was sexually abusing teenage girls.