STORY: On Nov. 21 Russia struck Ukraine's Dnipro with a new kind of missile.Known as Oreshnik, or hazel tree in Russia, it caused limited damage, according to senior officials. But the first combat use of such a design – which Russian President Vladimir Putin called unstoppable – has drawn scrutiny from Western military experts.

The Pentagon says the Oreshnik is a tweak of Russia’s RS-26 Rubezh missile, an intercontinental ballistic missile (ICBM) that has been tested since 2011.

Russia's attack on Ukraine that used an "experimental" intermediate-range ballistic missile dubbed Oreshnik was messaging, not mass destruction.Why it matters: The Nov. 21 salvo underscored how little recourse Moscow has to Western aid — like Army Tactical Missile Systems — once deemed red lines.

Russian leader Vladimir Putin has said that he might use the new Oreshnik medium-range ballistic missile against "decision-making centres in Kyiv". Source: Putin quoted by Russian media Quote: "The Ministry of Defence and the General Staff are choosing targets for [Oreshnik] strikes against Ukraine.

Vladimir Putin confirms the Oreshnik missile's readiness, signalling a dangerous escalation in the Ukraine conflict and broader geopolitical tensions.- Watch Video on English Oneindia

Russia’s new ballistic missile flies on a high arc out of Earth’s atmosphere and releases multiple high-speed projectiles, making it challenging but not impossible to intercept

Russian President Vladimir Putin says the new Oreshnik hypersonic missile used against Ukraine this week will go into serial production and is "ready to be used" again if necessary.

Vladimir Putin is threatening to launch a new intercontinental ballistic missile, which he calls "Oreshnik," against Ukraine, with Kyiv potentially being the target, the Russian media Kommersant reports.