The teenager died in the explosion of an anti-tank cartridge in Lobnya

"The investigator of the investigative department for the city of Khimki of the Main Investigative Directorate of the Investigative Committee of Russia in the Moscow Region has opened a criminal case on the fact of illegal arms trafficking and negligence that led to the death of a child (part 2 of article 293 of the Criminal Code and part 2 of article 222 of the Criminal Code)," in the UK.

The incident took place on October 20.

Investigators and forensic experts work at the scene.

In February, an improvised explosive device exploded in an apartment in a residential building in St. Petersburg.