London: Daesh terrorists in Syria have released a video of 12 men being beheaded — the men were accused of fighting for the rival terror groups Al Qaida and Jaish Al Islam, it was reported on Friday.

Filmed in the Syrian capital Damascus, the footage shows the men being interviewed and paraded in front of the camera before the execution on Thursday, a report in the London-based Daily Mail said.

After “confessing” to the crime of opposing Daesh and failing to declare allegiance to the terror group’s leader Abu Bakr Al Baghdadi, every terrorist was executed by a different masked member of the Daesh group.

The video titled Repent Before Being Overcome bore all the high-tech hallmarks of the terror group that other murder videos earlier have had.

In a slick bit of editing before the executions, the footage momentarily rewinds and fades into a montage of Al Qaida and Jaish Al Islam fighters battling Daesh, the report said.

The overall theme of the video is along the same lines, and sends a clear signal to other terrorist groups fighting in Syria that they must declare allegiance to Daesh “before being overcome”, report added.

While speaking directly in front of the camera, the men appeared clean-shaven — a rarity for terrorists — and something likely to have been intended to humiliate the men before they were killed.

Earlier, a footage was released that showed Daesh terrorists executing 16 Iraqi nationals on charges of “spying” for coalition forces.