Russia said it had repeatedly warned the United States it would retaliate against what it saw as hostile moves and was growing tired of showing restraint, Russian Deputy Foreign Minister Sergei Ryabkov said, the Interfax news agency reported.
Ryabkov's comments came after the U.S. House of Representatives voted overwhelmingly on Tuesday to slap new sanctions on Russia and force President Donald Trump to obtain lawmakers' permission before easing any sanctions on Moscow.
Ryabkov added that the new sanctions would leave no room to improve ties between Moscow and Washington in the near future and take the relationship into uncharted waters.
Russia should prepare a "painful" response to new U.S. sanctions to be imposed on Moscow, Konstantin Kosachyov, a prominent member of the upper house of Russia's parliament, said on his Facebook page on Wednesday.
"Judging by the unanimous vote in the U.S. House of Representatives on the sanctions package against Russia, Iran and North Korea, there will be no breakthrough (in U.S.-Russian relations)... In fact, further degradation of bilateral cooperation is becoming inevitable," Kosachyov said.
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