Russian Deputy Foreign Minister Sergei Ryabkov said on Wednesday that the risk of a nuclear clash was at its highest level in decades, warning that Moscow was in a "de-facto" open conflict with Washington over the war in Ukraine.

Relations between Russia and the United States, long strained, have worsened even further since Russia's invasion of Ukraine last year. In February, Moscow pulled out of the New START nuclear arms reduction treaty with Washington.

Speaking at an event entitled "A World Without START: What's Next," Ryabkov said there was "no question" of Russia restoring the treaty for now, criticizing what he called Washington's "hostile course" towards Moscow.

"I wouldn't want to dive into a discussion about whether the likelihood of a nuclear conflict is high today, but it is higher than anything we have had for the past few decades, let's put it that way," the Interfax news agency quoted him as saying.... Read More: JPost