The attacks included 19 uses of hazardous materials on the battlefield around Mosul.
The numbers of those fleeing has increased as Iraqi forces edge further into the city.
Human Rights Watch has cited witness accounts of the prisoner massacre.
Iraqi authorities must take new measures to ensure thousands of vulnerable families are cared for.
Men dressed as Iraqi police allegedly carried out revenge attacks against civilians, rights group says.
The elite unit had paused its advance to allow other units to make similar progress.
The Hashd al-Shaabi umbrella group has so far played a limited role in retaking Mosul.
Aid groups have warned of a humanitarian crisis in the fallout from the campaign.
Diplomats from the anti-ISIS coalition are meeting in Paris for talks on a stabilization plan in Mosul.
He said the battle to capture the Iraqi city was designed to support Clinton's presidential bid.
Barack Obama warns of potential for "significant" displacement in Iraqi city as offensive continues.
The rights group has accused government forces and militias of serious human rights violations.
Julian King said returning jihadis pose a "serious threat that we must prepare ourselves for."
The campaign is being spearheaded by U.S.-backed ground forces.
A commander sought to switch sides and deliver the city to government forces.
The Iraqi leader told citizens that his forces "will raise the flag of Iraq in the center of Mosul."
The British journalist is seen criticizing U.S.-led coalition air strikes on the radical Islamist group's territory.
Louis Park says he offered the challenge after two close calls from ISIS mortar fire.
As ISIS continues to lose territory, more and more extremists are trying to return home.
ISIS fighter known as Abu Wahib, the former heir to Al-Qaeda's Iraqi leader, was known for his brutality.
Girl labeled "Isis Phillips" said she is "disgusted" at what high school said was an innocent mistake.
Erdogan said that Turkey needed more assistance to defend its border.
The average age of ISIS recruits is 26 or 27 and the leading nationality is Saudi.
Iraqi counter-extremism forces gain the key area of Hit but 20,000 civilians remain.
ISIS is stopping several families, who have paid tax to remain, from leaving the embattled city.