Russian state news agencies reported that the force of the explosive device that killed 54-year-old Kirilov and his assistant on Ryazanskyi Prospekt was equivalent to 300 grams of TNT.
They added that explosives experts and specialized search dogs searched the surrounding area and no other explosives were found.
Kirillov was subject to an asset freeze and entry ban under UK sanctions.
in may The US has accused Russia of deploying chemical weapons as a “method of warfare” in Ukraine, in violation of international law, which prohibits their use.
State Department officials said Russia used the asphyxiant agent chloropicrin to gain a “battlefield victory” over Ukraine.
Ukrainian colonel Artyom Ulasyuk previously reported that during the war, more than 2,000 Ukrainian servicemen were exposed to chemicals in hospitals, and three people died.
The Kremlin then rejected the accusations, calling them “baseless.”
Kirillov served in various positions in the Russian Armed Forces related to hazardous materials, including the directorate of the Radiation, Chemical, and Biological Defense Forces Command.
According to the SBU, Russian troops are dropping chemical weapons on Ukrainian soldiers with the help of drones.
He was named head of NBC in 2017.
