ISIS fanatics have blown up two journalists after packing their cameras and laptops with explosives in the terror group's latest brutal execution video.

Footage shows one of the journalists handcuffed to metal railings, in Deir Ezzor, Syria, with a camera hanging around his neck before the device is apparently detonated.

Another media activist was executed in the same way but with a laptop while a third was tied to a metal door before being choked with an iron chain.

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Footage shows one of the journalists handcuffed to metal railings, in Deir Ezzor, Syria, with a camera hanging around his neck before the device is apparently detonated

ISIS fanatics have blown up two journalists after packing their cameras and laptops with explosives in the terror group's latest brutal execution video

Another media activist was executed in the same way but with a laptop while a third was tied to a metal door before being choked with an iron chain

A fourth journalist has his throat cut by a knife-wielding executioner while a fifth is slaughtered with a 'sharp object' according to the Syrian Observatory for Human Rights.

They had reportedly been accused of 'acting against the Islamic state, communicating with outside parties and receiving funds, and other charges'.

The Britain-based Observatory said the five were abducted in October and are believed to have been killed in December over their coverage of events in the eastern Syrian city of Deir el-Zour, half of which is held by ISIS.

The head of the Observatory, Rami Abdurrahman, said news of the detention and killing of the activists was withheld because no bodies had surfaced and the families feared retribution for reporting the deaths.

In the video, an ISIS narrator says the group is facing a media war and warns against reporting to the 'crusaders' and 'enemies of God.' The narrator says journalists who report on ISIS may be targeted, even if they reside in Europe.

An ISIS narrator says the group is facing a 'media war' and warns against reporting to the 'crusaders' and 'enemies of God'

In the video, each activist explains what he did to report from the area, at times acting it out by shooting pictures or interviewing people in the city's market

The five journalists are thought to have been abducted in October and are believed to have been killed in December over their coverage of events in the eastern Syrian city of Deir el-Zour, half of which is held by ISIS

A fourth journalist has his throat cut by a knife-wielding executioner while a fifth is slaughtered with a 'sharp object' according to the Syrian Observatory for Human Rights

Abdurrahman said one of the activists, 28-year-old Sami Jawdat, has been feeding information to the Observatory since the outbreak of the civil war in 2011 and continued to do so after ISIS seized half of Deir el-Zour in 2014.

He said Jawdat had been detained by ISIS on a number of previous occasions.

He said that since learning of the abduction and killing of the activists, his group has told other activists to refrain from taking photos or shooting video in ISIS-held areas.

In the video, each activist explains what he did to report from the area, at times acting it out by shooting pictures or interviewing people in the city's market.

The journalists had reportedly been accused of 'acting against the Islamic state, communicating with outside parties and receiving funds, and other charges'

The men can be seen tied to railings in the horrific videos. At least 95 journalists have been killed in Syria since 2011

Syria is the third-deadliest country in the world for journalists after Yemen and Iraq, according to the Committee to Protect Journalists

One of the activists says he reports for Al-Jazeera, another says he contributed to the New York-based Human Rights Watch. There was no immediate comment from either on Sunday.

Syria is the third-deadliest country in the world for journalists after Yemen and Iraq, according to the Committee to Protect Journalists.