Around 7:30 a.m., a gurney carrying a man who looked like Epstein was wheeled out of the jail and headed to New York Downtown Hospital, the New York Post report.
He was in cardiac arrest at the hospital, sources told NBC News, and was pronounced dead.
On July 24, Epstein, 66, was found nearly unconscious in his cell with injuries to his neck and was placed on suicide watch.
Epstein originally was placed in the general population at the facility before he was moved to solitary protective custody because of threats from other inmates.
He was being held without bail on charges of conspiracy and sex trafficking with girls as young as age 14 in the early 2000s at Epstein’s residences in Manhattan and Palm Beach, Fla. He pleaded not guilty on July 6 and faced 45 years in prison if convicted.
U.S. District Judge Richard M. Berman denied bail on July 18 because he said Epstein is a danger to the community and a flight risk.
In 2008, Epstein pleaded guilty to state charges of soliciting a minor for prostitution. He served 13 months, including work release, and registered as a sex offender in Florida in 2008. Epstin had been accused of running an international sex trafficking operation.
On July 12, U.S. Labor Secretary Alexander Acosta resigned amid increasing scrutiny over the plea agreement as a federal prosecutor in Florida.
On Friday, thousands of pages of documents were unsealed in connection with a defamation case against. A self-identified victim, Virginia Giuffre, said she was forced to perform sex acts with, from seferal high-profile people, including former Maine Sen. George Mitchell and ex-New Mexico Gov. Bill Richardson, money manager Glenn Dubin and MIT professor Marvin Minksy.