The first combat use of Russia’s new IRBM — which Russian President Vladimir Putin called unstoppable — has drawn scrutiny from Western military experts.

Hours after the strike, Russian President Vladimir Putin, in a TV address, said that Russia had launched a "new conventional intermediate-range" missile with the codename Oreshnik, meaning hazel tree in Russian.

A new intermediate-range ballistic missile called Oreshnik used by Russia in a strike on Ukraine this month is a state-of-the art weapon that the West cannot intercept, President Vladimir Putin has said.

Putin said a massive aerial bombardment of Ukraine's energy facilities was in response to Kyiv striking Russian territory with Western-supplied missiles

There will not be any analogues of Russia's new intermediate-range ballistic missile, Oreshnik, in the world soon, Russian President Vladimir Putin said on Thursday. "And finally, the newest hypersonic strike system Oreshnik in a non-nuclear version.