Hillary Clinton on Saturday said she's confident nothing marked classified was relayed in her private emails while she was secretary of state.
Two inspectors general have asked the Department of Justice to investigate whether classified information was mishandled in relation to Clinton's use of a private email account.
The Justice Department mistakenly told reporters that the request was for a criminal investigation, then corrected itself and said the request was not a criminal referral.
Clinton, who is seeking the Democratic presidential nomination, said "there was a disagreement between various agencies" as to whether the four emails in question should have been classified when they were sent.
"I did not receive anything that was marked as classified," Clinton told reporters after a campaign event in Winterset, Iowa.
"What I think you're seeing here is a very typical kind of discussion, to some extent disagreement, among various parts of the government over what should or should not be publicly released," Clinton said.
Clinton has been under fire by critics for her use of a private email kept on a private server while she served as secretary of state. Clinton has said she wanted the emails to be public, and turned over 55,000 pages of emails to the State Department for release.
A Justice Department official said Friday afternoon that "The Department has received a referral related to the potential compromise of classified information," but noted that it was not a criminal referral.
In a joint statement, the two inspectors general who made the referral said that it was "a security referral made for counterintelligence purposes."
But, they added, they found that a sample of 40 of Clinton's emails from Clinton's server contained four with classified information that should "never have been transmitted via an unclassified personal system."
This article originally appeared on NBCNews.com.