"A criminal case has been opened on this fact under the signs of a crime provided for in ... the criminal code of the Russian Federation (terrorist act)," the spokeswoman said.
While working with civilians in the Kursk Region village of Plekhovo, military investigators received information from a woman about the murder of her relative by Polish mercenaries serving in the armed forces of Ukraine.
According to the woman, the Polish mercenaries fired at a residential area in the village, as a result of which her husband's brother was killed.