Classified documents are also discovered in Mike Pence's home

These documents, discovered last week by a Pence lawyer at his home in Indiana, have been handed over. FBI.

Investigators, meanwhile, are reviewing the documents of President Joe Biden and former President Trump.

Pence representatives sent letters to the National Archives to warn of the documents.

The latest development emerged after Mr. Pence requested legal assistance from specialists in handling classified “from the care added”.

He called for help “as it became public that classified documents were found at the residence of President Joe Biden in Simonington”, the BBC reported.

Lawyers found “a small number of documents that may contain sensitive or classified” that were closed by the former vice president in a safe.

According to American media, documents are believed to have been originally sent to Mr. Pence's home in Virginia before being sent to Indiana later.

After the letter became public, Trump appeared in defense of the Pence, addressing his social media platform True Social to say he is “an innocent man”.

He never did anything dishonest on purpose in his life,” wrote Trump. “Leave him alone!! ”

Pence had repeatedly said in recent months that she did not believe that there were classified documents.

Earlier this month, he told CBS he was convinced that reviews of the documents in his house had become “in a thorough and cautious manner”.