BREAKING: FBI searched Biden’s UPenn office in November after classified docs discovered

The FBI searched Biden's Washington, DC Penn Biden Center office in November, sources close to the matter told Wall Street Journal. The search took place after aides earlier that month found classified materials and surrendered them to the National Archives.

The search took place after the FBI received a green light from Biden's lawyers, following the discovery of around a dozen documents, which was first reported by CBS.

It is not known whether investigators found new items in their search.

The materials were identified by personal attorneys for the president on November 2, just days before the midterm elections, according to the special counsel to the president Richard Sauber. The documents were discovered when Biden's personal attorneys "were packing files housed in a locked closet to prepare to vacate office space at the Penn Biden Center in Washington, D.C.," Sauber said in a statement.

It was previously reported by the Washington Post that "early on, Biden's attorneys and Justice Department investigators both thought they had a shared understanding about keeping the matter quiet."

"The White House was hoping for a speedy inquiry that would find no intentional mishandling of the documents, planning to disclose the matter only after Justice issued its all-clear. Federal investigators, for their part, typically try to avoid complicating any probe with a media feeding frenzy," the Post reports.

A second batch of classified documents would later be discovered on Jan. 11. Additional classified documents were found in Biden's Wilmington, Delaware residence.