Ukraine was responsible for the killing of Lt Gen Igor Kirillov in Moscow, a Ukrainian security source has claimed, according to reports by Reuters...

(RFE/RL) -- A high-ranking officer in charge of Russia's Nuclear, Biological, and Chemical Defense Forces (RKhBZ) has been killed in an...

A top Russian general accused by Ukraine of being responsible for the use of chemical weapons against Ukrainian troops was killed in Moscow by...

Bombing kills Russian chemical weapons head; Kyiv calls it retribution.

Bombing kills Russian chemical weapons head; Kyiv calls it retribution.

The general had faced sanctions for using chemical weapons in Ukraine.

The general had faced sanctions for using chemical weapons in Ukraine.

As a result of the explosion in Moscow, Lieutenant General Igor Kirillov, the head of the Troops of Radiological, Chemical and Biological Defense of...