US billionaire Jeffrey Epstein to remain behind bars as judge considers bail

US billionaire Jeffrey Epstein will remain behind bars until a federal judge considers whether or not to grant him bail on charges he sexually abused underage girls.

During a hearing in New York, US District Judge Richard M Berman said he needed more time to make a decision over whether or not to grant Epstein bail.

Prosecutors in the US have maintained that the 66-year-old jailed financier is a flight risk and danger to the community – saying he should remain behind bars until his trial.

Epstein is accused of abusing dozens of underage girls in New York and Florida in the early 2000s.

Prosecutors said their case is getting "stronger by the day" after several more women contacted them in recent days to allege he abused them when they were underage.

Assistant US attorney Alex Rossmiller also revealed that authorities found "piles of cash", "dozens of diamonds" and an expired passport with Epstein's picture and a fake name during a raid of his Manhattan mansion following his July 6 arrest.

Epstein's lawyers said he has not committed crimes since pleading guilty to soliciting a minor for prostitution charges in Florida in 2008 and that the federal government is reneging on a 12-year-old plea deal not to prosecute him.

They said they planned to file a motion to dismiss the case and that Epstein should be allowed to await trial under house arrest in his 77 million dollar Manhattan mansion, with electronic monitoring.

In a written submission on Friday to US District Judge Richard M Berman, prosecutors shared new information about their investigation and why they perceive Epstein as dangerous.

They said several additional women in multiple jurisdictions had identified themselves to the government, claiming Epstein abused them when they were minors.

Also, dozens of individuals have called the government to report information about Epstein and the charges he faces, prosecutors said.

Prosecutors said they believe Epstein might have tried to influence witnesses after discovering that he had paid a total of 350,000 dollars to two individuals, including a former employee, in the last year.

That came after the Miami Herald reported the circumstances of his state court conviction in 2008, which led to a 13-month jail term and his deal to avoid federal prosecution.

"This course of action, and in particular its timing, suggests the defendant was attempting to further influence co-conspirators who might provide information against him in light of the recently re-emerging allegations," prosecutors said.

The decade-old secret plea deal led to labour secretary Alexander Acosta's resignation last week.

Mr Acosta came under renewed criticism following Epstein's arrest over the 2008 non-prosecution agreement he oversaw as the US attorney in Miami.

In addition to the charges in the indictment, prosecutors are also reviewing dozens of electronic files seized during a raid on Epstein's residence after his July 6 arrest, finding even more photos than the hundreds or thousands of pictures of nude and semi-nude young women and girls they had reported prior to a court hearing a week ago.

In their submission to the judge, Epstein's lawyers said their client has had a clean record since he began registering as a sex offender after his Florida conviction.

They said the accusations against Epstein are "outside the margins of federal criminal law" and do not constitute sex trafficking since there were no allegations he "trafficked anybody for commercial profit; that he forced, coerced, defrauded, or enslaved anybody".

Prosecutors said efforts by defence lawyers to characterise Epstein's crimes as "simple prostitution" were "not only offensive but also utterly irrelevant given that federal law does not recognise the concept of a child prostitute - there are only trafficking victims - because a child cannot legally consent to being exploited".

Additional reporting by Press Association.