The relevant agencies in America began assessing the risks that may result from the leak of secret US documents about the war in Ukraine and a number of countries allied to Washington, at a time when Moscow commented on Monday on these leaks.

Pentagon spokeswoman Sabrina Singh said: "Interagency cooperation has immediately begun to assess the impact (leak) of these video documents on national security and on our allies and partners."

According to US media analysis, these leaks may be useful to Moscow, as these documents show the extent to which US intelligence services have infiltrated certain parts of the Russian military apparatus.

The U.S. Justice Department, which opened an investigation on Saturday, is trying to determine the source of the leaks and is still examining the authenticity of the documents that have been released.

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, Pentagon and State Department, according to the same source.

Some national security experts and U.S. officials say they suspect the leaker is American, given the breadth of the topics covered in the documents, but they do not rule out the involvement of pro-Russian elements.

A former CIA officer said it was highly likely that Moscow orchestrated the leak to sow confusion and potential division between Washington and its allies.


Illness and scandal

For its part, the Kremlin said on Monday that there was a general trend to hold Russia responsible for everything, in response to a question about accusations that Moscow may have been involved in leaking documents to US intelligence.

Kremlin spokesman Dmitry Peskov said: "I cannot comment on this in any way. You and I know that there is actually a constant tendency to hold Russia responsible for everything. This, in general, is a disease."

Russia's foreign intelligence service declined to comment when asked by Reuters about the U.S. leaks.

Peskov called the leaks "very interesting." Asked about the possibility of Washington spying on Ukrainian President Volodymyr Zelensky, Peskov said this was not ruled out.

"The fact that the United States has been spying on a number of heads of state, especially in European capitals, for a long time has been repeated, and this has caused many scandalous situations," he said.