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.

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

Russia's security service said Wednesday it detained a citizen from Uzbekistan in the bombing that killed a senior general as he left his southeastern Moscow apartment -- a bold assassination that was claimed by Ukraine's security service.

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