US appoints counsel to investigate Biden's handling of secret papers

US Attorney General Merrick Garland has named an independent prosecutor to investigate President Joe Biden's handling of classified documents, after a furore over secret papers found at his former office exploded with the discovery of a second batch at his private residence.

The new find, from Biden's time as vice president, was uncovered at a storage space in the garage of his home in Wilmington, Delaware, where he often spends weekends, his lawyer said.

Garland, who runs the US Justice Department, said on Thursday that private attorney and former government prosecutor Robert Hur would be given the title of special counsel and empowered to examine whether the cache violated any laws.

"As I have said before, I strongly believe that the normal processes of this department can handle all investigations with integrity," Garland said.

"But under the regulations, the extraordinary circumstances here require the appointment of a special counsel for this matter."

Garland's announcement came hours after the White House acknowledged the second batch of papers in a statement that did not address their contents — supercharging a growing scandal over a first batch of documents found at a Washington think tank where Biden had an office.

Hur, a former assistant US attorney who worked on counterterrorism and corporate fraud in the DOJ from 2007 until 2014 and returned under the Trump administration as the principal associate deputy attorney general, is expected to begin work in the coming days.

The first cache of Biden documents was discovered a week before last year's midterm elections but only acknowledged by the White House on Monday, prompting accusations from Republicans of a cover-up and the unequal application of the law in the two cases.

READ MORE: Classified docs from Biden's VP period found at Washington think tank

Congress urged to investigate

The disclosures have prompted comparisons to the special counsel investigation of former president Donald Trump's hoarding of hundreds of classified materials at his South Florida beachfront home and his alleged obstruction of government efforts to get them back.

"I take classified documents and classified material seriously. We're cooperating fully (and) completely with the Justice Department's review," Biden told reporters during a separate address. 

"As part of that process, my lawyers reviewed other places where documents from my time as vice president were stored, and they finished the review last night."

The president said a "small number" of documents with classified markings had been found in storage areas and his library and that the Justice Department was notified immediately.

House Speaker Kevin McCarthy called for a congressional investigation into the discovery and the earlier find in a closet at his former office in Washington.

"Here's an individual that's been in office for more than 40 years. Here's an individual that sat on '60 minutes,' that was so concerned about President Trump's documents, locked in behind, and now we find... a vice president keeping it for years out in the open in different locations."

READ MORE: Biden aides discover more classified records - report

White House 'cooperating'

The White House, in contrast, said it has been "fully cooperating with the National Archives and the Department of Justice" since the Biden discovery.

On Thursday, it said Biden didn't know classified documents were there in think tank or his home.

After the first batch of Biden documents was discovered at his former office at the Penn Biden Center think tank last November, lawyers turned them over to the National Archives, which handles all such materials, the White House counsel's office said.

Nevertheless, serious questions remain about when the second batch of documents was unearthed, who took both sets from the White House and if they have been accessed since Biden left the vice presidency in 2017.