• Russia's head of chemical weapons was killed on Tuesday.
• The general, Igor Kirillov, died in an explosion when a bomb in a scooter in Moscow went off.
• His assistant also died in the attack, the country's investigative committee said.

A high-ranking Russian general responsible for Russia's chemical weapons was killed on Tuesday by a bomb in a scooter.

Lieutenant General Igor Kirillov, the head of Russia's Nuclear, Biological, and Chemical Protection Troops, was killed by a bomb planted in a scooter parked on a street in Moscow, the country's investigative committee said in a statement on Telegram on Tuesday.

“According to the investigation, on the morning of December 17, an explosive device was detonated in a scooter parked next to the entrance of a residential building on Ryazansky Prospekt in Moscow,” the statement said.

“As a result of the incident, the head of the radiation, chemical and biological protection troops of the Armed Forces of the Russian Federation Igor Kirillov and his assistant were killed,” it added.

The committee said it had opened a criminal case into the murder of two servicemen in Moscow.

The statement said investigators and forensic experts were working at the scene.

The Russian investigations committee did not immediately respond to a request for comment from BI.

This is a developing story. Check back for updates.

​Lieutenant General Igor Kirillov was killed by a bomb planted in a scooter, Russia's investigative committee said on Tuesday.  Military & Defense, russia, nuclear-weapons, bombs All Content from Business Insider