The video, which appeared on a Telegram account linked to the militant group, shows the attackers firing several bursts of gunfire, numerous inert bodies strewn around and a fire starting in the background.
A video apparently shot by gunmen who carried out the deadly attack on a Moscow concert hall has been posted on social media accounts typically used by the jihadist group Islamic State, according to the SITE Intelligence Group.
The video, which lasts a minute and a half, shows several individuals with blurred faces and garbled voices, armed with assault rifles and knives.
