Russia's Putin warns US

"Russia will take appropriate military and technical measures in response to the unfriendly steps of the United States," Russian President Vladimir Putin told an expanded meeting of the Defense Ministry, Report informs, quoting RIA Novosti.

"If our Western colleagues continue the line of open aggression, we will take appropriate military and technical measures. Unscrupulous steps will be met with a harsh response. We have every right to act in this direction to ensure Russia's sovereignty and security," he said.