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.

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

Kirillov, who was chief of Russia ’s nuclear, biological and chemical protection troops, was killed outside his apartment building on Tuesday along with his assistant when a bomb hidden in an electric scooter went off. He is the most senior Russian military officer to be assassinated in Russia by Ukraine.

A Russian general assassinated by Ukraine was buried with full military honours on Friday as Moscow launched an apparent revenge attack on what it said was a Ukrainian intelligence service command centre in Kyiv.

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

Igor Kirillov, a general in charge of Russia’s military’s nuclear and chemical weapons protection forces, was killed on Tuesday by a bomb in Moscow, the Russian authorities said.

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

Russian authorities reported the detention of an Uzbek national who confessed to assassinating General Igor Kirillov, chief of Russia's Nuclear, Biological, and Chemical Protection Troops, in Moscow on Tuesday.