Hillary Clinton
Hillary Clinton Reuters

A federal judge on Thursday ordered the State Department to start releasing the additional 15,000 emails uncovered during the FBI's investigation into Hillary Clinton's private server starting on September 13, The Hill reports.

The date is a full month earlier than agency officials had hoped to begin the release, the news website noted.

On Monday the State Department was ordered to review and determine the potential release of the 14,900 documents, most of which are believed to be emails to or from Clinton, part of a cache that the FBI turned over to the State Department at the end of its probe into Clinton's use of the server.

State Department officials confirmed the existence of those emails to a separate federal judge, but also claimed they would need until October 14 to review the documents to determine which were work-related and to prepare those for release, according to The Hill.

That judge had decided to give the State Department until September 23 to iron out a schedule to release the emails in batches, but another judge in Florida, overseeing a separate complaint from Judicial Watch, ruled Thursday that State must start releasing those emails on September 13.

That ruling would force to agency to drastically ramp up its work.

Judicial Watch lauded the judge's decision and accused Clinton of trying to delete relevant work emails, according to The Hill.

It's "no wonder federal courts in Florida and DC are ordering the State Department to stop stalling and begin releasing the 14,900 new Clinton emails,” Judicial Watch President Tom Fitton said in the statement.

The judge's ruling, though, doesn't mean that all emails will be released. The ruling only covers emails covered under Judicial Watch's Freedom of Information Act request on the Benghazi attacks and other matters.

State Department spokesperson Elizabeth Trudeau said in a statement that it's still unclear whether any of the new emails would qualify for release.

The FBI has already determined that Clinton was "extremely careless" with sensitive information by using the private server, but recommended against bringing charges against Clinton. .

Clinton has said she used private emails out of "convenience", though she has also admitted it "would have been better" to have two accounts to separate work and personal emails.

Clinton gave the State Department about 30,000 emails from her private server last year, which have been released by the agency on a rolling basis. She said she also deleted another 30,000 that she considered personal.