The FBI has recovered email from Hillary Clinton's server, according to a Bloomberg News source.

Bloomberg reported on Tuesday evening that, according to a person familiar with the investigation, email that had been deleted Clinton has been recovered on the server.

According to Bloomberg, the FBI is investigating how and why classified information ended up on the server. The FBI has provided little public information about the investigation into the matter, and has not made clear exactly why officials would reconstruct Clinton's server.

During her time at the State Department, Clinton exclusively used a personal email account housed on a private server. Last year, Clinton provided 55,000 pages of email to the State Department; that email was the product of a review conducted by her personal staff, after which emails deemed "personal" (about half of her total email sent) were deleted. Bloomberg was unable to confirm the number of personal emails the FBI has recovered.

Clinton has maintained that the email she deleted pertained to things like yoga classes and wedding planning.

In recent weeks, the Justice Department has argued in court filings on the behalf of the State Department that Clinton had the authority to decide which emails were personal correspondence and which were public record, and to delete the former.