Federal prosecutors want to talk to Prince Andrew as part of their Jeffrey Epstein investigation, but they're apparently not having much luck.

Geoffrey Berman, U.S. attorney for the Southern District of New York, said Monday that federal prosecutors and the FBI are seeking an interview with Prince Andrew as they continue to investigate Epstein's co-conspirators. According to Berman, though, Andrew has provided "zero cooperation," The New York Times reports.

Prince Andrew has faced scrutiny over his ties to the convicted sex offender, who was found dead in his jail cell last year while awaiting trial on sex trafficking charges. Virginia Roberts Giuffre has claimed Epstein forced her to have sex with Prince Andrew when she was 17, which he has denied.

After a widely-panned interview last year in which Prince Andrew said Epstein "conducted himself in a manner unbecoming," he announced he would "step back from public duties for the foreseeable future," citing the fact that "my former association with Jeffrey Epstein has become a major disruption." At the time, he said that "of course, I am willing to help any appropriate law enforcement agency with their investigations, if required."

As prosecutors seek Prince Andrew's cooperation, Berman emphasized Monday, per The Associated Press, "Jeffrey Epstein couldn't have done what he did without the assistance of others, and I can assure you that the investigation is moving forward." Brendan Morrow