The leading Democratic presidential candidate, Hillary Rodham Clinton, said she never knowingly sent or received classified information using her private email server and did not know what messages were being cited by intelligence investigators as examples of emails containing classified information, the BBC reported.

Clinton spoke briefly after reporters raised the topic during a news conference.

“I am confident that I never sent or received any information that was classified at the time it was sent and received. 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,” she said.

Clinton said she wanted the information in question to be made public as soon as possible.

Intelligence investigators told the Justice Department in a letter this week secret government information may have been compromised in the unsecured system she used at her New York home during her tenure as secretary of state.

In addition to alerting the Justice Department to the potential compromise of classified information, the inspector general of the US intelligence community sent a memo to members of Congress indicating that “potentially hundreds of classified emails” were among the 30,000 Clinton had provided to the State Department.