The head of Russia's chemical and biological forces, Lt. General Igor Kirillov, was killed in a Moscow bomb blast claimed by Ukraine.

Igor Kirillov, head of Russia's nuclear and chemical defense, helped spread false claims about Ukraine, the U.S. and COVID-19.

Russia said on Wednesday it had detained an Uzbek man who had confessed to planting and detonating a bomb which killed a top general, Igor Kirillov, in Moscow on the instructions of Ukraine's SBU security service.

Kirillov, who has been killed in Moscow, was accused by the West of overseeing the use of chemical weapons on the battlefield in Ukraine.

Kirillov ran Russia’s nuclear, biological and chemical defense forces. Kyiv previously accused him of ordering the use of chemical weapons against Ukraine.

Russian officials say a man has been detained over the killing of Lt. General Igor Kirillov, who led Russia's chemical and biological weapons unit.

It is believed that the bomb was hidden in or on an electric scooter at the location, which emergency teams were seen examining.

Kirillov, who was chief of Russia ’s nuclear, biological and chemical protection troops, was killed outside his apartment building on Tuesday along with his assistant when a bomb hidden in an electric scooter went off. He is the most senior Russian military officer to be assassinated in Russia by Ukraine.

The assassination of Igor Kirillov, the head of Russia’s Nuclear, Biological, Chemical Defense Forces, represents a defining moment in the Russia-Ukraine war.

A 29-year-old Uzbekistani national has been arrested in connection with Tuesday’s assassination of Lieutenant General Igor Kirillov, the head of Russia’s radiation, chemical, and biological defense forces.

Lieutenant General Igor Kirillov, head of Russia’s Nuclear, Biological, Chemical Defence Forces (NBC), was killed in an explosion in Moscow in an assassination claimed by Ukraine

Lt. Gen. Igor Kirillov was killed Tuesday by a bomb hidden on an electric scooter outside his apartment building.