On Saturday, the US Department of Justice opened an investigation to try to determine the source of the leak of classified documents, especially related to the Russian invasion of Ukraine , which were published this week on social media.

According to the first conclusions, these leaks not only include reports and documents related to the conflict in Ukraine, but also relate to very sensitive analyzes about the allies of the United States.

"We have contacted the Ministry of Defense about this and have opened an investigation," a ministry spokesman told AFP.

Dozens of classified documents have been posted on Twitter, Telegram and other social networks in recent days, and new documents are still emerging.

The US Department of Defense also said Friday that it was investigating the matter.

The Washington Post quoted US officials as saying that some of these documents were forged. But most of them are original and consistent with CIA reports circulating in the White House, the Pentagon and the State Department, according to the same source.

According to the analysis of US media, these leaks may be beneficial to Moscow, as these documents show the extent to which US intelligence services have penetrated certain parts of the Russian military apparatus. Some of them contain information related to the internal discussions of governments allied with the United States.

For example, one document highlighted government discussions in South Korea about the possibility of supplying Ukraine with American artillery shells, according to The New York Times.