“According to available data, the explosion occurred as a result of the detonation of a homemade explosive device filled with striking elements,” the committee said, according to an English translation of the statement.
“The investigative task force, which included investigators, forensic experts, experts, and employees of operational units of law enforcement agencies, began examining the scene of the incident.”
The investigative committee has opened a criminal case over the murder and illegal trafficking of explosives.
Citing emergency response officials, TASS said the device that set off the explosion had the power of more than 300 grams of TNT.
Kirillov was the head of Russia’s Nuclear, Biological, and Chemical Defense Forces. His death occurred a day after he was sentenced by a Ukrainian court over Russia’s alleged use of banned chemical weapons amid the Russia–Ukraine conflict.
The Trump administration is urging Russia to end its war on Ukraine, which started in February 2022.
At least nine individuals were killed and more than 70 injured in the recent attack on Kyiv, according to the Ukrainian government. This was the largest attack on the country’s capital city since July last year.
“We’ve issued a very explicit proposal to both the Russians and the Ukrainians, and it’s time for them to either say yes, or for the United States to walk away from this process,” he told reporters in India during a state visit.
The White House has “engaged in an extraordinary amount of diplomacy, of on-the-ground work,” he said.
“We’ve really tried to understand things from the perspective of both the Ukrainians and the Russians. What do Ukrainians care the most about? What do the Russians care the most about? And I think that we’ve put together a very fair proposal,” he said.