The State Department informed Ukraine about the content of the response to Russia's security proposals

“We not only informed them, gave them a preview of what was going to be in the message, we included their reaction in our message,” he said.

Earlier, Russian Foreign Minister Sergei Lavrov said that it would be right to publicize Washington's response on security guarantees.

He also warned US Secretary of State Anthony Blinken of the serious consequences of Washington's ignorance of Russian security concerns.