Washington's unilateral and unprovoked withdrawal from the Intermediate-Range Nuclear Forces (INF) Treaty deteriorates the situation in the field of international security, Russian Prime Minister Dmitry Medvedev said Saturday.

"Unilateral, unprovoked US withdrawal from the INF treaty worsens the situation in the sphere of international security and strategic stability. It will not be left without an effective response," Medvedev wrote on Twitter. READ MORE: Russia Suspends INF Deal With US, Putin Directs Ministers Not to Start New Talks The prime minister also noted that the Russian government would envisage necessary mechanisms for research funding and development of new types of weaponry amid the current INF treaty crisis.

"Taking into account the US withdrawal from the INF treaty and the reciprocal steps announced by the Russian president, the Russian government will envisage necessary funds and mechanisms for research financing and development of new types of weapons," Medvedev stressed.

Mikhail Gorbachev (left) and Ronald Reagan after signing the INF Treaty, December 8, 1987 ©
AP Photo / Bob Daugherty Finland Calls Russia, US to Continue Dialogue on INF Treaty - Foreign Ministry
The Russian prime minister's comment comes after earlier on Saturday, Russian President Vladimir Putin announced that Moscow was suspending the INF nuclear treaty following the US' announced pull-out on Friday. 
The move was made following US Secretary of State Mike Pompeo's statement, issued on Friday, which announced that the United States would suspend its obligations under the INF Treaty and initiate a six-month withdrawal process.Source: sputniknews.com