US Warns Russia of 'Catastrophic' Consequences , if Nuclear Weapons , Are Used in Ukraine .
National Security Advisor Jake Sullivan made the comments during a 'Meet the Press' interview that aired on Sept.
Sullivan stated that it "would be catastrophic if Russia went down the dark road of nuclear weapons use.".
The comments come days after Russian President Vladimir Putin reiterated that he was willing to use such weapons in the region.
We will certainly use all the means at our disposal.
, Vladimir Putin, Russian President, via NBC News.
It's not a bluff, Vladimir Putin, Russian President, via NBC News.
Putin's comments come as Russian forces have faced major setbacks in the war in Ukraine.
Underscoring the seriousness of Putin's threats, Ukrainian President Volodymyr Zelenskyy stated that he takes Putin at his word.
I don’t think he’s bluffing.
He wants to scare the whole world.
These are the first steps of his nuclear blackmail, Volodymyr Zelenskyy, Ukrainian President, via NBC News.
U.S. National Security Advisor Sullivan stated during his interview that the U.S. already has a plan in place should Russia use a nuclear weapon.
In private channels we have spelled out in greater detail exactly what that would mean, Jake Sullivan, National Security Advisor, via NBC News.
He also reiterated that the consequences of using nuclear weapons would be "horrific.".
It's very important that Moscow hear from us and know from us that the consequences would be horrific, and we've made that very clear, Jake Sullivan, National Security Advisor, via NBC News.
Russian Foreign Minister Sergei Lavrov was asked over the weekend if Moscow would consider the use of nuclear weapons in Ukraine.
He stated that the contested Ukrainian areas would receive the “full protection of the state.”