Lt. Gen. Igor Kirillov, the commander of Russia’s chemical, biological and radiation defense forces, and his assistant were killed during an explosion in Moscow on Tuesday, just a day after he was charged criminally by Ukraine's Security Services.
Russia's Investigative Committee said the explosive device was placed in a scooter near a residential apartment block on Ryazansky Avenue and triggered remotely, according to The Associated Press.
The bomb had the power of roughly 300 grams of TNT, according to Russian state news agency Tass.
Reuters reported that Ukraine's Security Services, also known as the SBU, claimed responsibility for the hit on Kirillov. Fox News Digital has reached out to the intelligence agency for confirmation.
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"Investigators, forensic experts and operational services are working at the scene," RIC spokeswoman Svetlana Petrenko said in a statement. "Investigative and search activities are being carried out to establish all the circumstances around this crime."
Petrenko also said Russia is treating the explosion as a terrorist attack.
Kirillov was charged by the SBU on Monday with using banned chemical weapons on the battlefield. Several countries had also placed him under sanctions for his role in the war against Ukraine, The AP reported.
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The SBU said it has recorded more than 4,800 uses of chemical weapons during Russia's attack on Ukraine, which began in Feb. 2022.
The Associated Press contributed to this report.
EDITOR’S NOTE: This report has been updated to identify Lt. Gen. Igor Kirillov as the commander of Russia’s chemical, biological and radiation defense forces.