The US exit was not a question of "Russia's guilt" but is instead "the strategy of the United States to get out of its international legal obligations in different areas," foreign ministry spokeswoman Maria Zakharova told the television channel channel Rossiya 1.

US President Donald Trump had earlier said the United States was suspending its obligations under the Intermediate-Range Nuclear Forces Treaty (INF) as of Saturday, and had started a process to withdraw in six months.

Washington says that a new Russian medium-range missile system breaches the 1987 treaty, a claim that Moscow has vigorously denied.

Zakharova said that the US had provided "no evidence, no satellite photo... no evidence" to prove that Russia had violated the treaty.

She insisted that Russia had "always agreed to hold talks on the INF Treaty".

And she warned that if the US "really leaves the INF Treaty, Moscow reserves the right to an appropriate response".