Alwaght - Russia will take counter measures if Washington imposes new sanctions on Moscow over the Ukraine crisis, Reuters reported Russia's Deputy Foreign Minister Sergei Ryabkov saying on Saturday .
The America's Congress has readied new sanctions on Russian weapons companies and investors in the country's high-tech oil projects, but Barack Obama has yet to sign a corresponding bill into law .
"We will not be able to leave that without an answer," Russia's Interfax news agency quoted Ryabkov as saying. He did not say what form of counter-measure Moscow might take .
Relations between Kremlin and White House are at their lowest since the Cold War because of Russia's annexation of Crimea from Ukraine in March and its support for pro-Russian rebels in eastern Ukraine .
The West claims that Russia has armed the rebels - an accusation that Moscow rejects - and has, together with the European Union, imposed several rounds of economic sanctions on Russian individuals and large companies .
Russia retaliated to the earlier sanctions by restricting food imports from a range of Western countries .
Russia on Friday criticized the Ukraine Freedom Support Act, which foresees further sanctions, saying Washington was doing its utmost to "destroy the carcass of cooperation" between the two countries .
