The documents, released on Friday and cited by ABC News, show that when Clinton was on a trip to Russia while serving as US secretary of state, her aide brought a classified briefing book into the hotel suite. The classified documents were left behind when the aide and Clinton left the room.
According to the FBI documents, the briefing book should not have been brought into the hotel suite in Russia.
Most of Clinton’s emails recovered by the FBI will reportedly not be made public until after the US presidential elections in November.
The Judicial Watch has filed a lawsuit demanding that all 14,900 of Clinton’s emails uncovered by the FBI be released. In 2014, Clinton released over 55,000 emails to US State Department investigators, stating that the documents contained only work-related information. She has admitted to erasing 33,000 emails.