Activists have revealed the horrific torture methods that are being deployed by ISIS which includes breaking prisoners' ribs and taunting women by locking them in cages with human skulls.

The terror group controls the Syrian city of Raqqa with an iron fist and is quick to hand out punishment to those who don't live by their rules.

But now the activist movement 'Raqqa is Being Slaughtered Silently' has lifted the lid on the brutal torture methods handed out to people who defy the jihadists.

Activists have revealed the horrific torture methods that are being deployed by ISIS in their Syrian stronghold Raqqa

And one of the most horrific torture methods is called the 'flying carpet', which is used against prisoners.

According to the activist group, it sees prisoners tied to a metal board with hinges in the middle, which is then closed.

And the brutal bend in the often means the victims end up with broken ribs or fractures in their spines.

Other physical punishments also include electric shocks and even lashings as a way of eliciting information and confessions from victims.

But the jihadis have also been deploying psychological torture as another way of punishing people who disobey their laws.

In the case of women, they are often thrown into metal cages filled with human skulls on the streets of Raqqa to humiliate them.

Meanwhile male prisoners are often taunted with the amputated heads of other prisoners by guards, who promise their will be a similar fate for them if they don't obey the laws.

Prisoners are often taunted with knives being held to their necks by the terror group as a way of psychological torture

Ahmed, an activist for the movement told the Atlantic Council: 'The ISIS prison wardens would speak continuously of the coming retribution.

'ISIS men would enter, place knives on our necks and threaten to kill us.

'An ISIS member would occasionally enter carrying a prisoner's amputated head, promising a similar fate.'

In addition, public executions and whippings are said to be becoming ever more frequent as ISIS loses ground in an attempt to set up a self-styled caliphate.

It has imposed its own sickening brand of medieval justice across swathes of territory in Iraq and Syria, executing prisoners for so-called 'crimes' such as blasphemy and being homosexual.