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

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

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

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.

Russian security forces have detained two suspects over the assassination of a top Kremlin general and his assistant in Moscow, Russian media reported on Dec. 18. Lieutenant General Igor Kirillov and his assistant were killed in Moscow on Dec.

Igor Kirillov, a general in charge of Russia’s military’s nuclear and chemical weapons protection forces, was killed on Tuesday by a bomb in Moscow, the Russian authorities said.

Lieutenant General Igor Kirillov was the head of Russia's Nuclear, Biological, and Chemical Protection Troops. Authorities said the explosion was caused by a bomb hidden inside an electric scooter.

Russia has detained two suspects in the murder of Lieutenant General Igor Kirillov, Head of the Radiation, Chemical and Biological Protection Troops of the Russian Armed Forces, the Russian newspaper Kommersant reports.

The deputy director of the Franco-Russian observatory and associate researcher at IRIS (Institute of International and Strategic Relations), Igor Delanoë, explains that the Ukrainians have been “engaged in targeted eliminations” for two years now.

The arrest announcement follows the death of Russia's Lt. Gen Igor Kirillov, who was killed on Dec. 17 by a bomb hidden on an electric scooter parked outside his apartment building.

Russia's top security agency says that it has arrested several suspects accused of involvement in an alleged Ukrainian plot to assassinate senior military officers.