"The issue is now entirely in the hands of investigative authorities. An investigation is underway. And while an investigation is underway, all of the regimes are determined by the investigation," Peskov told reporters.
Not a single international organization responded to the call of Russian President Vladimir Putin to launch an investigation into the matter, Peskov added.
President Vladimir Putin announced Wednesday that the Russian Investigative Committee had determined that Ukraine used a US-made Patriot missile system to bring down the Ilyushin Il-76 plane with the Ukrainian PoWs.