There are no “offensive biologic weapons” in any of the dozens of biological labs in Ukraine that the United States has partnered with on safety precautions.

The U.S. has since 2005 worked with Ukrainian officials on how to implement additional safety procedures in 44 labs, which had previously been used for the former Soviet Union’s illegal biological weapons program. These facilities have gained outsize significance recently amid a Russian disinformation campaign claiming that the U.S. is working with Ukraine to develop biological weapons, which the Biden administration has forcefully denied.