US President Joe Biden’s aides have found another batch of classified documents at a second location, according to reports in the US.
The first cache of classified documents was found at the Penn Biden Center - a think tank near the White House - in November but only came to light this week.
A source told US news website NBC, that since the discovery of the documents in November, aides have been searching for any other classified material which may be at other locations.
The location and classification level of the second batch of documents has not been disclosed.
The White House has not commented on the second discovery, but the source said aides have searched beyond the office he used during his time as vice-president under Barack Obama.
The Department of Justice has launched a review following the discovery in November.
The US publication said the first tranche contained 10 documents and were found as aides were packing files in order to vacate the office at the centre.
On Tuesday, Mr Biden said he was surprised by the discovery and was co-operating with the review.
Richard Sauber, special counsel to the President added: “The discovery of these documents was made by the President's attorneys.
“The documents were not the subject of any previous request or inquiry by the Archives.
“Since that discovery, the President's personal attorneys have cooperated with the Archives and the Department of Justice in a process to ensure that any Obama-Biden Administration records are appropriately in the possession of the Archives."
Separately, FBI agents searched the home of Donald Trump in Florida last August and seized 10,000 filed which had not been given to the National Archives.
As per US law, all White House records must be given to the archives after the administration’s time in office has concluded.
