The 12-minute video released on social media yesterday mimics a participatory television show, in which members of the public are interviewed and invited to take part.
Produced by the group's branch in Nineveh province, of which Mosul is the capital, the video starts with footage of destruction it presents as the result of US-led air strikes against it.
It also shows the bodies of dead children.
The video moves on to the "confessions" of five men from Mosul, detailing how they passed on intelligence on the activities and positions of the jihadists in Nineveh, most of which is still controlled by IS.
One fighter turns to the crowd: "O Muslims, who amongst you wants to get closer to God through these disbelieving apostates?"
Hands go up, he picks "volunteers" and the five IS fighters in combat gear are replaced by "civilians" to whom they give their handguns to shoot the accused in the back of the head.
Residents are subsequently interviewed about the group execution, with one saying he wished he had been selected to take part.
The video was released the same day IS claimed responsibility for three Baghdad bombings that killed at least 94 people, the deadliest spate of attacks to hit the Iraqi capital this year.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
