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.

NATO members on Tuesday reaffirmed their support for Ukraine during talks with the country's officials held in response to Russia's launch of an experimental intermediate-range ballistic missile last week.

Russian President Vladimir Putin said in a televised address that the attack was a test of Russia's "newest missile," an IRBM called "Oreshnik."

Today, our insane neighbor has once again revealed its true nature—its disdain for dignity, freedom, and human life itself. And, most of all, its fear.'

Russia launched an intercontinental ballistic missile during an attack on Ukraine on Thursday, Kyiv's air force said, in the first known use in the war of such a powerful, nuclear-capable weapon with a range of thousands of kilometres.

Russian President Vladimir Putin said on Thursday that Russia fired a new, non-nuclear intermediate-range ballistic missile at Ukraine, part of a wide-ranging TV address that sharply criticized

Russia fired a hypersonic intermediate-range ballistic missile at the Ukrainian city of Dnipro on Thursday in response to the U.S. and UK's allowing Kyiv to strike Russian territory with advanced Western weapons,

The Russian president says the strike was in response to Ukraine's "use of American and British long-range weaponry".