The Pentagon has said Russia "likely" deployed an anti-satellite weapon in space earlier this month, a claim quickly rejected by Moscow.
Pentagon spokesman Major General Patrick Ryder told journalists during a press conference on May 21 that the new counter-space weapon was launched five days earlier into the same orbit as a U.S. government satellite.
He added Pentagon assessments "further indicate characteristics resembling previously deployed counter-space payloads from 2019 and 2022."
"Certainly, we would say that we have a responsibility to be ready to protect and defend the domain -- the space domain -- and ensure continuous and uninterrupted support to the Joint and Combined Force," he said.
Russian Deputy Foreign Minister Sergei Ryabkov on May 22 rejected the statement, calling it "false information from Washington."
"We always stand against the placing of assault items in the Earth orbit," Ryabkov told reporters in Moscow.
A growing number of nations have moved into space, with about a dozen capable of launching spacecraft. Meanwhile, about 80 nations and many private companies have assets in orbit, making the weaponization of space a global concern, even though the the 1967 Outer Space Treaty requires weapons to remain on Earth.
On May 20, a UN resolution proposed by Russia against an arms race in space was not approved by the Security Council, with seven countries, including the United States, France, and the United Kingdom, voting against it, and seven nations, including Russia and China, voting in favor of the resolution.
Last month, Russia vetoed a U.S. resolution against nuclear weapons in space. The U.S. representative in the UN, Robert Wood, accused Russia at the time of using manipulative tactics regarding the issue of nuclear weapons in space.
In February, media reports in the United States described Russia's nuclear ambitions in space and the nuclear potential of anti-satellite weapons as a threat to national and international security.
Amid the reports, Washington accused Russia of developing anti-satellite weapons, while President Joe Biden publicly assured Americans that neither they nor the international community face any danger.
Russian President Vladimir Putin said then that his country "has always been categorically against and is now against the deployment of nuclear weapons in space."