“The United States will not remain party to a treaty that is deliberately violated by Russia,” Secretary of State Mike Pompeo said in a statement.
The United States alleges a new Russian cruise missile violates the pact. The missile, the Novator 9M729, is known as the SSC-8 by the North Atlantic Treaty Organization (NATO).
Russia said on Saturday that the scrapping of a Cold War era nuclear pact may lead to an arms race and direct confrontation between several global regions.
President Vladimir Putin on Thursday accused the United States of raising the risk of nuclear war by threatening to spurn a key arms control treaty.
A defiant Vladimir Putin on Wednesday threatened to develop nuclear missiles banned under a treaty with the United States.
United States delivered Russia a 60-day ultimatum to come clean about what Washington says is a violation of a arms control treaty.