MOSCOW - Russia said on Friday that US sanctions imposed over the annexation of Crimea would not serve American interests and would elicit a tough response, harming bilateral ties.

"We ... will be tough in our response," the Russian Foreign Ministry said in a statement.

"Washington should be under no illusions: The effectiveness of its sanctions in terms of American interests is zero. But the harm to US-Russian relations due to these irresponsible actions is inevitable."

Please LIKE our Facebook page - it makes us stronger