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

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.

Russian security officials said it arrested four Russians accused of planning to kill senior officials with the Defense Ministry.

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.

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

Igor Kirillov, a senior general in charge of Russia’s nuclear defence forces, was killed on Tuesday in a bomb blast in Moscow. A source in the Security Service of Ukraine (SBU), talking to Al Jazeera,

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.

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.

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

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

The year 2024 saw President Vladimir Putin further cement his power as he sought to counter Russia's isolation over the war in Ukraine.