State Department officials are set to release roughly 4,400 pages of Hillary Clinton's emails Friday amid reports that the former secretary of state mishandled classified information on her private server.

It will be the second time State officials have been forced to publish a substantial batch of Clinton's emails under a Freedom of Information Act case brought by Vice News.

A court ordered the State Department to produce an additional 8 percent of the 55,000 pages of emails Clinton turned over in December by the end of July as part of an agreement to roll out Clinton's emails once a month until all of the records are available online.

Friday's production will bring the total proportion of Clinton's emails that have been published to 15 percent.

The State Department drew criticism last month when officials chose to release thousands of pages of emails late at night in what many read as a deliberate attempt to blunt media attention.

Clinton fended off reports this week that she sent and received classified material on her private server despite previous assurances that sensitive information had never changed hands on her presumably unsecured email network.

The Democratic presidential candidate has never elaborated on the types of security measures that may have protected the data on her server.

After a report last week indicated two inspectors general had asked the Department of Justice to investigate Clinton's mishandling of classified information — which is a federal crime — the Clinton campaign doubled down on its defense of the email arrangement.

"I did not send nor receive anything that was classified at the time," Clinton said last week after an event in Iowa.

But the State Department inspector general and that of the intelligence community said hundreds of Hillary Clinton's private emails contained information that was "potentially classified," undermining Clinton's oft-cited defense of the arrangement.

Because the State Department had never been in possession of those emails — and had no knowledge of their existence — until after her tenure, the documents wouldn't have had an official classification designation at the time even if their contents were clearly worthy of being classified.

That was apparently the case for the dozens of emails released by the State Department in May and June — including some related to Benghazi — that were "retroactively" classified.

After the agency finally received those records, which should have been housed on government servers in the first place, it was able to properly classify the information Clinton sent and received on her server.

What's more, the classified information that was transmitted on Clinton's private email server belonged to five different intelligence agencies.

The National Security Agency, Defense Intelligence Agency, National Geospatial-Intelligence Agency, Office of the Director of National Intelligence and the CIA each claimed data that appeared in those emails, according to McClatchy.

In one classified email that was improperly made public May 22 in a batch of documents related to Benghazi, the NSA, DIA and the National Geospatial-Intelligence Agency had information at stake, the report said.

The intelligence community's inspector general discovered five classified emails among a sample of just 40 he had examined for sensitive information.

The news that classified information was inadvertently released to the public as a direct result of Clinton's mishandling of the emails has raised questions about whether the State Department has the proper safeguards in place to prevent further publication of sensitive data.

A State Department spokesman did not return a request for comment on the timing or contents of the email batch slated for release Friday.