WASHINGTON (AP) — The top federal prosecutor in Chicago denied Thursday evening that his office had opened an investigation into E. Jean Carroll, the longtime advice columnist who has said Donald Trump sexually assaulted her in a New York department store 30 years ago, hours after multiple news organizations reported that the Justice Department was investigating whether she had lied during the course of civil litigation against Trump.

The Associated Press and other news organizations, citing anonymous sources, reported that the federal prosecutors’ office in Chicago had opened an investigation into Carroll examining possible perjury allegations.

But Andrew Boutros, the U.S. attorney for the Northern District of Illinois, issued a statement roughly 24 hours after the first report was published saying that his office “has not opened — and has never opened — a criminal investigation into E. Jean Carroll.”

A person familiar with the matter, who spoke on condition of anonymity to discuss an ongoing investigation, initially told the AP on Thursday morning that investigators were focused on Carroll but later clarified that the actual focus was on a nonprofit that had helped fund her case.

A lawyer for Carroll declined to comment through a spokesperson on Thursday.

The Justice Department investigation into Carroll was first reported by CNN on Wednesday evening.