These were among the “vast trove” of images of young women, some of whom appeared to be underage, prosecutors said, that were found during a search of the Manhattan townhouse of Jeffrey Epstein, a wealthy financier. A decade earlier, he had avoided federal prosecution on similar allegations that he had sexually exploited dozens of vulnerable minors.

[Read our latest coverage of the arrest of Jeffrey Epstein.]

Mr. Epstein’s case has drawn intense interest partly because of his extensive ties to celebrities, socialites and powerful figures, including United States presidents, past and current.

On Monday, prosecutors unsealed new charges of sex trafficking and sex trafficking conspiracy and argued that Mr. Epstein be held without bail.

Federal prosecutors said in court documents that the lewd photos showed Mr. Epstein “is not reformed, he is not chastened, he is not repentant.”

Here’s what we know:

Years of accusations

Mr. Epstein, 66, has been accused for years in civil court cases and in police complaints of preying on girls at his New York City mansion and his Palm Beach, Fla., estate.