Former Russian President Dmitry Medvedev on Monday accused NATO of prompting Moscow to abandon its moratorium on short- and medium-range nuclear missiles, warning that further actions will follow.

Medvedev, who has been engaging in a exchange of acerbic barbs on social media with U.S. President Donald Trump, made his comments after Russia's Foreign Ministry said Moscow no longer considered itself bound by the moratorium on the deployment of short- and medium-range nuclear missiles.

"The Russian Foreign Ministry's statement on the withdrawal of the moratorium on the deployment of medium- and short-range missiles is the result of NATO countries' anti-Russian policy," Medvedev posted in English on X.

"This is a new reality all our opponents will have to reckon with. Expect further steps."

Medvedev, who now serves as deputy head of Russia's powerful Security Council, did not elaborate.