Leaflets advised residents of various precautions to take including instructions to tape over their windows to protect from flying glass and to disconnect gas pipes.
[10] An Iraqi intelligence source stated on 21 October that ISIL executed 284 men and boys abducted from Mosul for the purpose of using them as human shields.
[11] UN sources stated that four people died from inhaling toxic fumes after ISIL set fire to the Al-Mishraq Chemical Factory on 23 October.
[12] On 26 October, CNN reported that ISIL has been carrying out "retribution killings" of civilians as revenge for others welcoming Iraqi and Peshmerga troops in villages restored under government control.
Euro-Mediterranean Human Rights Monitor warns that Iraqi government and international forces have to put an end to the humanitarian crisis in Mosul and provide its residents with their basic needs.
Human rights are violated by both ISIL, which drove about 550 families from the villages of As-Semalyya and An-Nejafyya, and Iraqi troops which captured 1,500 civilians from mosques and schools in the Dybka refugee camp.
On 21 October 2016, another human rights violation committed by Iraqi army and police as they arrested almost hundreds of civilians and executing some villagers in the south of Mosul claiming that they are hosting ISIL militias.
Mosul's population reached to 1.5 million people, including 600,000 children who are besieged by ISIL militias and suffering from the shortage of food, water, electricity and medical care.
[20] On 7 November, the Iraqi War Media Office announced that the bodies of estimated 300 people were found in a mass grave at the agriculture college in Hamam al-Alil, south of Mosul.
[25] Civilians who had fled the city in the previous few days reported that ISIL was using suicide bombs to attack residents in addition to Iraqi forces.
[27] The U.N. Office of Human Rights provided new details that ISIL is using chemical weapons and has stockpiled "large quantities" of ammonia and sulfur.
ISIS used this mass grave to kill and dump people over the past two years," Iraqi Federal Police Commander Brig.
[31][32][33] On 3 July 2017, forensic medicine doctors recovered 74 dead bodies that were likely to be killed by ISIL for trying to flee on the streets in al-Zanjili district, northwest of the city.
[35] On 2 November 2017, UN assistance Mission for Iraq (UNAMI) published a report on liberation of Mosul and concluded that ISIL members should face "international crimes" charges.
[36] The presence with Iraqi forces of several militias with histories of human rights abuses was criticized; Human Rights Watch called for Shia militias from the Popular Mobilization Forces (PMF) not to enter Mosul, following allegations of abuse of Sunni Muslims in anti-ISIL operations in Fallujah, Tikrit and Amirli.
[40][41] On 21 October, International Business Times reported that "disturbing and graphic footage posted to social media allegedly shows Iraqi security forces torturing and interrogating young children for information about ISIL as they attempt to retake Mosul from the Islamic State terror group.
"[53] On 12 July, after the Iraqi Government's declaration of victory, a video posted online by the Mosul Eye blog showing a man suspected to be an ISIL fighter was being held in a building and then dragged by soldiers across an open area to a ledge above a drop of at least 30 feet, where another body lied motionless.
The WHO said that they had enabled "an emergency response plan to safely treat men, women and children who may be exposed to the highly toxic chemical[s]" and were preparing for more patients with exposure to these agents.
[59][60] In April 2017, American and Australian advisory forces embedded with Iraqi units were attacked with low-grade, "rudimentary" chemical weapons during an offensive.