The Kremlin said on Monday that Russian investigators would look into a video circulated on social media that purported to show Ukrainian forces mistreating captured Russian soldiers.
Kremlin spokesperson Dmitry Peskov said the video, which he said contained "monstrous images", needed to be legally assessed and for those who took part in what he described as torture to be held responsible.
Reuters has not been able to independently verify the authenticity of the video cited by the Kremlin.