An English-speaking Islamic State fighter who threatened Britain. Photo: Screenshot.

A pro-Islamic State (ISIS) hacking group calling itself “Cyber Kahilafah” released a step-by-step video in Arabic on Sunday, showing how to build a suicide vest.

It appears to be a mashup of earlier videos, borrowing its beginning from a January video that showed the ISIS Paris attackers engaging in beheadings and other brutal activities. That video was produced by the ISIS-controlled Al-Hayat Media. Cyber Kahilafah’s video is grainier and cruder than typical Al-Hayat productions.

Arabic instructions are superimposed over earlier ones written in the Cyrillic alphabet, likely for Russians.

The video shows how to build the bomb vest using Semtex, a plastic explosive that has military and construction applications. It is a favorite of terrorists due to its light weight and ease of concealment. The Libyan operatives who destroyed Pan Am Flight 103 over Lockerbie, Scotland, in 1988 used Semtex, which is readily available for sale on the dark web.

A raid in the Czech Republic last year netted 220 pounds of the explosive that was slated to be sold on the black market.

In the video, Arabic instructions give the user a step-by-step guide to assembling the suicide vest’s components, including the detonating cord, buckshot, switches, wires, a trigger button, cardboard, LEDs, a nine-volt battery, and a detonator housing. At the same time, an instructor assembles the components, while an Islamic nasheed (chant) is heard in the background singing about jihad against the unbelievers.

This isn’t the first time that  jihadis have shown how to make a suicide vest online. Back in 2004, an unknown jihadist group produced a similar video for a bomb vest using a different design.

This is the latest example of ISIS supporters trying to show potential terrorists how to make improvised weapons. If potential terrorists are determined, they can find just about everything they need on the Internet.