The Biden administration warned Wednesday that Russia could use chemical or biological weapons in Ukraine

White House press secretary Jen Psaki on Wednesday called Russia’s claims “preposterous” and warned of “disinformation” campaigns.

“We took note of Russia’s false claims about alleged U.S. biological weapons labs and chemical weapons development in Ukraine,” she tweeted.

Psaki said the United States was in “full compliance” with its obligations under the Chemical Weapons Convention and the Biological Weapons Convention

She said Russia has long “maintained a biological weapons program in violation of international law” and cited its military intervention in Syria in support of the Bashar al-Assad regime

“Now that Russia has made these false claims, and China has seemingly endorsed this propaganda, we should all be on the lookout for Russia to possibly use chemical

Psaki made the comments after Russian officials accused the United States of developing such weapons in Ukraine.

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