Russia said on Monday it would be forced to respond in kind to restore the military balance with the United States if President Donald Trump carried through on a threat to quit the nuclear arms treaty and began developing new missiles, Reuters reported.
President Vladimir Putin is due to discuss the matter in Moscow later on Tuesday with Trump's national security adviser, John Bolton.
Kremlin spokesman Dmitry Peskov said he expected Bolton to explain the US stance.
"Of course there are weak points (in the treaty), but tearing up the agreement without plans for anything new is what we don't welcome," Peskov told reporters on a conference call.