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These horrifying pictures show a hellish ISIS prison after it was liberated by Iraqi troops.
One of the upsetting images shows a filthy dog cage the terror group used to hold and humiliate its victims.
Chillingly, a car battery is seen in the same still - which the torture-loving terror group may have used to electrocute terrified captives during brutal interrogation - or for their own amusement.
Car batteries can be used to administer painful shocks to a prisoner - often by attaching metal clips to their genitalia.
They were taken by Iraqi special forces who swept into Fallujah and recaptured most of the city as the Islamic State group's grip crumbled after weeks of fighting.
The soldiers, who also took video footage, are also seen with the jihadist's sinister black flag and captured documents.
An Iraqi government press staement read: "“The majority of prisoners were arrested by ISIS since the occupation of the city of Fallujah, two years ago, and they are suffering from bad health conditions.
"The arrested people were transferred to hospitals to receive medical treatment."
Thousands of trapped residents took advantage of the militants' retreat to flee, some swimming across the Euphrates Rier to safety.
Residents described harrowing escapes even after ISIS fighters abandoned some checkpoints that had them bottled up in the city.
On the river, some boats packed with people overturned in the water. Others picked their way down roads laced with hidden bombs that killed several. In some cases, ISIS allowed people to leave only if they took the jihadis' families with them.