His words are quoted by TASS.
The head of the UN commission of inquiry into events in Ukraine, Eric Mese, said earlier that the organization was investigating a video of the execution of Russian prisoners of war.
Before that, a video of the massacre of the Armed Forces of Ukraine over captured Russian soldiers appeared on the network.
After that, the Investigative Committee of Russia opened a criminal case.
The Russian side demanded that international organizations condemn the crime of the Ukrainian military and conduct a thorough investigation into the incident.
As noted in the Kremlin, Russia itself will search for the perpetrators, the criminals must be found and punished.