ISIS Beheading Video: Who Is The 'New Jihadi John'? British Extremist Who Guarded Radical Cleric Anjem Choudary

RTR4R9OY — A masked, black-clad militant known as "Jihadi John", who was identified as a Briton named Mohammed Emwazi, stands next to a man purported to be Steven Sotloff in this still image from a video obtained from SITE Intel Group website, Feb. 26, 2015. REUTERS/SITE Intel Group

A British extremist who once worked as a bodyguard for radical cleric Anjem Choudary has been described as "the new Jihadi John" after he appeared in a new Islamic State group (also called ISIS) video showing the beheading of prisoners, according to reports. Mohammed Reza Haque was previously photographed acting as a bodyguard for Choudary at demonstrations in London.

The new ISIS video shows Haque beheading five Western prisoners in the same manner as the notorious murderer Mohammed Emwazi, a former London resident. The 14-minute video, released by ISIS's Amaq media wing, showed the prisoners apparently confessing to spying, followed by their executions, according to the Daily Mail.

"These apostates who kneel, disbelieved and fell into apostasy, and championed the Crusaders and helped them against Muslims," an unidentified jihadi reportedly says in the video, in a speech delivered in Arabic. "They thought they were safe, but God shamed them, and they will be slaughtered by this knife which will slaughter those like them."

In the video, Haque is seen dressed in black from head to foot and uses a serrated hunting knife to behead a prisoner against a desert backdrop — similar to the one featured in earlier beheading videos featuring "Jihadi John" Emwazi, the Sun reported.

Emwazi, 27, who was called "Jihadi John," was responsible for the deaths of Britons David Haines, 44, and Alan Henning, 47, as well as Americans James Foley, 40, Steven Sotloff, 31, and Peter Kassig, 26, before he was killed by a U.S. drone strike on Raqqa in November 2015.

Haque, who is now believed to be the "new Jihadi John," fled to Syria in early 2014. The 34-year-old, who is 6 feet 8 inches tall, is called “The Giant” due to his towering stature.

Earlier this year, Haque was reported to be among a group of masked executioners to feature in an ISIS execution video. He was believed to be the man standing next to Briton Siddhartha Dhar, an ISIS fighter also known as Abu Rumaysah. However, this is the first time that Haque appeared unmasked in a video.