With 11 days to go until the presidential election, the FBI said on Friday it is reviewing new emails from Hillary Clinton's private server that she used while she was secretary of state.
In a letter to the Senate Judiciary Committee, FBI Director James Comey said the Bureau had learned of the existence of additional emails that were not investigated in the first go-around.
The new probe will seek to determine if those emails contained classified information.
Here is the letter FBI Director James Comey sent to members of Congress.
What 'unrelated' investigation?
In the 3-paragraph letter, Comey said additional emails were discovered in an "unrelated investigation" -- although it's unclear what, exactly, the unrelated investigation is.
According to CNN, the "unrelated case" does not have to do with Wikileaks -- the group that hacked and published Clinton team emails -- or the Clinton Foundation.
An FBI spokesperson declined to comment on the case to Circa.
A 're-opening' of the investigation?
A dispute has also arisen over the nature of the FBI's review.
When the news broke, most news organizations rushed to publish headlines claiming the FBI had "re-opened" its investigation of Clinton's private email server, implying that the Bureau would be reevaluating the case that saw no charges against Clinton.
But on background, FBI officials are now saying that's not exactly true -- and news organizations are changing their headlines to reflect that.
NBC's Pete Williams reports that the case was technically never closed on the Clinton server. And that's normal and procedural.— Tom Winter (@Tom_Winter) October 28, 2016
One reason the investigation wasn't "re-opened" was because it was never technically closed.
Trump goes all out
Despite FBI officials claiming on background that the case wasn't technically "re-opened," Republican nominee Donald Trump claimed it was in a fiery speech to supporters shortly after the news broke on Friday.
"They are reopening the case into [Clinton's] criminal and illegal conduct that threatens the security of the USA," Trump said as the crowd cheered "Lock her up!"
Trump campaign manager Kellyanne Conway was outwardly pleased with the news.
FBI Dir just informed me, "The FBI has learned of the existence of emails that appear to be pertinent to the investigation." Case reopened— Jason Chaffetz (@jasoninthehouse) October 28, 2016
Rep. Jason Chaffetz (R-UT) was one of the first to disclose the new FBI review
'Years of investigations'
Chaffetz, the chairman of the House Oversight Committee, has long been hammering Clinton over her use of a private email server while she was secretary of state.
In September, he publicly subpoenaed the FBI's full case file in its investigation into Clinton's email.
And this week, Chaffetz told the Washington Post that he "has planned years of investigations of Hillary Clinton's administration" if she wins the White House.
Hillary Clinton has nobody but herself to blame.
Speaker Ryan responds
In a statement, House Speaker Paul Ryan (R-WI) slammed Clinton for her "reckless" use of a private email server.
He also called on the Director of National Intelligence to suspend all classified information briefings for Clinton until the investigation is closed.
Here's Ryan's full statement.
This story is developing. Stay tuned for more updates.