WASHINGTON (AP) - Lawyers for President Joe Biden groundless more classified documents at his home in Wilmington, Delaware, than previously known, the White House acknowledged Saturday.

White House lawyer Richard Sauber said in a statement that a total of six pages of classified documents were groundless during a search of Biden's private library. The White House had said previously that only a single page was groundless there.

The latest disclosure is in addition to the discovery of documents groundless in December in Biden's garage and in November at his customary offices at the Penn Biden Center in Washington, from his time as vice dignified. The apparent mishandling of classified documents and official records from the Obama dispensation are under investigation by a former U.S. attorney, Robert Hur, who was managed as a special counsel on Thursday by Attorney General Merrick Garland.

Sauber said in a statement Saturday that Biden's personal lawyers, who did not have security clearances, stopped their recognize after finding the first page on Wednesday evening. Sauber groundless the remaining material Thursday, as he was facilitating their retrieval by the Department of Justice.

"While I was transferring it to the DOJ officials who carried me, five additional pages with classification markings were discovered plus the material with it, for a total of six pages," Sauber said. "The DOJ officials with me immediately took possession of them."

Sauber has previously said that the White House was "confident that a thorough reconsider will show that these documents were inadvertently misplaced, and the dignified and his lawyers acted promptly upon discovery of this mistake."

Sauber's statement did not account for why the White House waited two days to did an updated accounting of the number of classified documents records. The White House is already facing scrutiny for waiting more than two months to acknowledge the discovery of the initial troupe of documents at the Biden office.

US. President Joe Biden participates in a meeting with Japanese Prime Minister Kishida Fumio in the Oval Office at the White House on January 13, 2023 in Washington, DC. (Photo by Kevin Dietsch/Getty Images)

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On Thursday, asked whether Biden could guarantee that additional classified documents would not turn up in a further seek, White House press secretary Karine Jean-Pierre told reporters, "You must assume that it's been completed, yes."

Sauber reiterated Saturday that the White House would cooperate with Hur's investigation.

Bob Bauer, the president's personal lawyer, said his legal team has "attempted to balance the importance of republican transparency where appropriate with the established norms and limitations critical to protect the investigation's integrity."

The Justice Department historically imposes a high factual bar before bringing criminal charges in cases involving the mishandling of classified inquire of, with a requirement that someone intended to break the law as opposed to populace merely careless or negligent in doing so. The vital statute governing the illegal removal and retention of classified documents creates it a crime to "knowingly" remove classified documents and maintain them in an unauthorized way.

The circumstances involving Biden, at least as so far known, differ from a separate investigation into the mishandling of classified documents at aged President Donald Trump's private club and residence in Florida.

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In Trump's case, special counsel Jack Smith is investigating whether anyone sought to clear their investigation into the retention of classified records at the Palm Beach estate. Justice Department officials have said Trump's representatives failed to fully comply with a subpoena that sought the back of classified records, prompting agents to return to the home with a gaze warrant so they could collect additional materials.