Financier Jeffrey Epstein was arrested in New York Saturday on charges related to sex trafficking, according to multiple reports.

Epstein, 66, is expected to be arraigned in federal court on Monday on charges of molesting dozens of underage girls, sources told The Miami Herald.

He was reportedly arrested by the FBI and is in custody in New York. His bail hearing is reported scheduled to take place Monday.

"That bail hearing will be critical because if they grant him bail, he will disappear and they will never get him,'' a source in New York told the Herald.

The arrest was first reported by The Daily Beast.

The Hill has reached out to the FBI and the U.S. Attorney for the Southern District of New York for comment. Both declined NBC 4's request for comment.

Epstein has been accused of sexual assault by more than 30 girls. More than a decade ago he pleaded guilty to sex trafficking and was sentenced to serve just 13 months in prison, The Miami Herald reported. Epstein and his co-conspirators were given further immunity.

The Herald's report also detailed former U.S. attorney and current Labor Secretary Alexander Acosta's role in the agreement.

Epstein is a friend of both President Trump and former President Bill Clinton.