Europe 1 with AFP 21:23 p.m., April 10, 2023

US classified documents, including related to the war in Ukraine, were leaked on Monday evening. What pose a "very serious" risk to the national security of the United States, said the Pentagon on Monday. His spokesman would not comment on their authenticity.

The apparent leak of classified US documents, including those related to Ukraine and which appear to be authentic for the most part, poses a "very serious" risk to the national security of the United States, the Pentagon said Monday. The fact that these documents are circulating online represents "a very serious risk to national security and can potentially fuel disinformation," U.S. Department of Defense spokesman Chris Meagher told reporters.

Photos of the documents in question have circulated on some platforms

"We continue to investigate how this happened, as well as the scale of the problem. Steps have been taken to further analyse how this type of information has been distributed and to whom," he added. A steady stream of photographs of classified documents has been discovered on Twitter, Telegram, Discord and other sites in recent days, though some were able to circulate online for weeks before attracting media attention.

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The Pentagon spokesman would not comment on their authenticity, saying a team from the department was working to determine whether they were or not, but noted that the photos released appeared to contain sensitive information. "Photos appear to show documents in a format similar to that used to provide daily updates to our senior officials in operations related to Ukraine and Russia, as well as other intelligence updates," he said, but some "appear to have been altered." At least one of the documents seems to have been altered to suggest that Ukraine suffered greater losses than Russia, when the supposed original said the opposite.