The United States was aware through international notification agreements that Russia was planning the intercontinental ballistic missile test ahead of Wednesday’s launch, according to two US officials.
The US knew of the launch window and tracked the missile and was not concerned, the officials said.
Both Russia and the US — under an existing international agreement — notify other nations of tests to avoid any incidents.
The US assesses this missile is not yet operational in Russian inventory, the sources said.
“Such testing is routine, and it was not a surprise,” said Pentagon press secretary John Kirby in off-camera comments to reporters.
Kirby said the US “did not deem the test to be a threat to the United States, or its allies.”
“The department remains focused on Russia’s unlawful and unprovoked aggression against Ukraine,” said Kirby.
Earlier: The Russian defense ministry announced that it had conducted a test launch of its intercontinental ballistic missile, the Sarmat.
The missile was fired from a silo launcher at 3:12 p.m. Moscow time at the Plesetsk State Test Cosmodrome in the Arkhangelsk Region of northern Russia toward the Kura test site on the Kamchatka Peninsula in Russia's far east.
The defense ministry's statement said that it landed in the “designated area in Kamchatka."