A group calling itself 'Iraqi Swat' has set up an Instagram account which lets its followers determine the fate of captured ISIS jihadis.

Photographs featuring hogtied prisoners have been posted on the account with captions suggesting viewers have one hour to vote if the prisoner should be executed or allowed to live.

The posts, which have been condemned as a 'war crime' if genuine, have been seen by up to 84,000 people who follow the account.

A hogtied prisoner is dragged before the soldiers with a caption asking followers to vote on the man's fate

Another said followers could vote on whether this man lived or died but the account was unable to share the outcome due to Instagram's policies

The account bills itself as 'Iraq Special Operation Forces', but its posts of soldiers show little in the way of official military insignia.

In one image, posted 12 weeks ago and which is still visible on its 'backup' page, it asks: 'Cut the head of this terrorist or what' underneath an image of soldiers holding a sword while standing over a prisoner.

But in an apparent escalation of the group's tactics, a post on Monday showed a group of the soldiers standing over a bloodied prisoner.

Underneath, the caption stated: 'You can vote for (kill him or let him go). You have one houer [sic] to vote. We will post his fate after one houer [sic].

'Tag your friends and take your right take your revenge from ISIS right now. Please we don't have the time just one houer [sic] so tag your friends.'

Another photograph showed a bearded man sitting on a chair while suffering a wound to his head.

The caption read: 'We have arrested one big f***** of ISIS. You can vote for (kill him or let him go). Notice... If you vote for kill him we can't post his death because of Instagram sorry guys in this time.

'So we just want vote to decided [sic] his fate. Go.'

At least one of the photographs was taken near the Iraqi city of Mosul, where the government and its allied forces are trying to retake from ISIS. Pictured are civilians fleeing the devastating conflict

Iraqis fleeing the violence in Mosul arrive at the Kurdish checkpoint of Makhmur about 175miles north of Baghdad

Gideon Boas, a former legal officer at the ICC for Yugoslavia, told The Guardian the images 'unquestionably' appeared to show a war crime.

'Whether or not that person is a combatant - and therefore receives the protection of prisoner of war status - or falls to be dealt with as a domestic criminal, either way, that person has to be subject to a criminal process.'

Others told the paper the groups were likely an Iran-backed Shia militia, which currently operate throughout the country in tandem with Iraqi security forces.

A spokesperson for Instagram told MailOnline: 'Content which contains serious threats to public or personal safety is not allowed on Instagram. We removed this content as soon as it was reported to us.'