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.

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.

Russian state media says that an Uzbek citizen accused of acting on behalf of Ukraine has been charged by Russian authorities with this week’s assassination of a senior Russian general and his assistant.

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

A top Russian general accused by Ukraine of being responsible for the use of chemical weapons against Ukrainian troops was assassinated in Moscow by Ukraine's SBU intelligence service on Tuesday morning in the most high-profile killing of its kind.

An explosion in Moscow kills Lieutenant General Igor Kirillov, chief of the Russian Armed Forces' radiation, chemical, and biological defense troops. The Security Service of Ukraine is behind the operation to eliminate him,

Ukrainian sources were quick to background journalists to say they were behind the killing of Russian General Igor Kirillov. Experts say it's likely not that simple.

Lt. Gen. Igor Kirillov died in a blast in Moscow a day after he was charged by Ukraine's security services with the use of banned chemical weapons.

Lieutenant General Igor Kirillo, 54, died early on Tuesday after a device hidden inside a scooter was detonated as he emerged from his apartment block - with his driver also killed

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

Lieutenant General Igor Kirillov met his demise in Moscow on Dec. 17, reportedly killed by a bomb attached to a scooter planted by the Security Service of Ukraine (SBU). "Kirillov was a war criminal and a completely legitimate target,