Metropolitan Correctional Center's warden told a judge that an internal investigation into Jeffrey Epstein's first presumed suicide attempt has been completed as more questions rise following the accused pedophile's death in Manhattan federal jail cell.

Following BOP regulations, MCC Warden Lamine N'Diaye informed U.S. District Judge Richard Berman on Aug. 10 that the New York financier charged with sex trafficking had died after being found unresponsive in his cell in the Special Housing Unit, according to his letter obtained by News 4 on Wednesday.

In response, Judge Berman has pressed the warden for answers about how the 66-year-old became injured in jail last month.

Epstein sustained bruising to the neck on July 23, but officials have never said whether the injuries were self-inflected or the result of an assault. He was temporarily placed on suicide watch and subsequently killed himself.

Berman said that to his knowledge, the incident "has never been definitively explained."

N'Diaye replied that an internal investigation was completed but that he couldn't provide information because the findings were being incorporated into investigations by the FBI and Office of Inspector General into Epstein's death.

In the days since Epstein's death, a picture has emerged of the MCC as a chronically understaffed jail, with guards working overtime and other employees pressed into service as correctional officers.

N'Diaye has been temporarily reassigned pending the outcome of federal investigations into Epstein's apparent suicide.