KINSHASA, Democratic Republic of Congo — Seven Congolese Army officers have been arrested and charged with war crimes after a video surfaced last month that appeared to show uniformed soldiers opening fire on a group of civilians in a massacre that left at least 13 people dead, the military’s auditor general said on Saturday.

The video depicts a squad of soldiers gunning down a group of people, which included women and possibly children, in Congo’s Kasaï-Central Province. Most of the victims were unarmed, though a few men appeared to be holding slingshots. Several analysts who saw the video said that it revealed a government-sponsored massacre of civilians and that the video could be used as evidence of war crimes.

“In connection with this video, we have found seven suspects, all are F.A.R.D.C. elements, who are currently in detention,” said the auditor general, Gen. Joseph Ponde Isambwa, using an abbreviation for the Armed Forces of the Democratic Republic of Congo.

The officers, he said, had been charged with several crimes including “war crime by murder, war crime by mutilation, war crimes by cruel inhuman and degrading treatment and denial of an offense committed by persons subject to military jurisdiction.”