Islamic State (ISIS) stashed 32 tons of chemicals in Mosul before Iraqi forces liberated the western part of the city.
Shocking papers have emerged from the federal police, which revealed 1.5 tons were found in the southern part of the city, while 31 tons were found in the west.
Ammonium nitrate – a chemical commonly used as a component for making explosives – was the compound found by soldiers.
ISIS has long used bomb-laden vehicles on the frontline of their war in the middle east, careening them into opposition troops before blowing them up in highly destructive suicide missions.
The latest revelation comes as the sick terror group lose ground in Mosul, where their horrific campaign to control the Middle East began.
Police papers show Iraqi forces have freed 21,200 civilians from ISIS clutches, while 190 districts of the city were liberated.
Officers will slowly reduce their operations after the complete libration of Mosul from ISIS.
The terror cult are becoming more desperate in their bid to cling onto control following the advancing military operation on their stronghold in Mosul.
The number of ISIS militants fighting in Mosul has dwindled from thousands at the start of the government offensive more than eight months ago to a mere couple of hundred now, according to the Iraqi military.
An air strike wiped out four ISIS militants, including one jihadi general, and obliterated a bomb factory used by the terror-insurgents earlier this week.
Local sources have confirmed the air strike obliterated the factory near Kirkuk, two hours drive from the battle to reclaim Mosul, which was used by the vile terror cell to “booby-trap” vehicles.
It comes amid reports ISIS have burned one of their top militants to death for fuelling rumours that the group’s leader, Abu Bakr al-Baghdadi had died.