The information was obtained in the course of Moscow's special military operation that was launched on February 24, 2022.

Russia's Radiological, Chemical and Biological Defense (RCB) Troops revealed on Monday that in 2022 the US evacuated Ukrainian specialists working on bioweapons to western countries, including the US, Canada and throughout the European Union. The relocation was undertaken in part to prevent Russia from obtaining more information about activities by Ukrainian and US specialists that may be in contravention of international obligations and treaty norms. RCB troops began exposing the extent of the US bioweapons program in Ukraine last spring.

Responding to the latest findings by the Russian MoD, National Security Council Strategic Communications Coordinator John Kirby claimed: "There are no bioweapons labs, there is no bio weapons work being done by or with the United States with Ukraine in Ukraine."

At the same time, however, Kirby noted that the US "had been working with the Ukrainians on some pandemic prevention research," adding that "all those research facilities were vacated and safely deactivated before" the beginning of the Russian special military operation to demilitarize and de-Nazify the country.