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.

Akhmadzhon Kurbonov was ordered detained by a Moscow court until at least Feb. 17 in Tuesday’s bombing that killed Lt. Gen. Igor Kirillov, the chief of Russia’s Radiation, Biological and Chemical Protection Forces, the Tass state news agency reported.

Kurbonov was charged with the killings, carrying out a terrorist act and illegally manufacturing explosives, the news agency said.