From ABC News.

Russian Pres. Vladimir Putin said Russia fired intermediate range ballistic missiles (IRBM) into Ukraine’s eastern city of Dnipro — the first strike of its kind in the war.

A U.S. official said the United States briefed Ukraine and other close allies and partners in recent days on Russia’s possible use of this weapon. According to the official, Russia likely only possesses "a handful" of these experimental missiles.

"This strike was not nuclear," ABC News’ Patrick Reevell said. "What matters is that it’s still a long-range, nuclear-capable missile."