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ISIS captures up to 3,000 people fleeing violence in Iraq, UN says
ISIS and the dam that could destroy a city
Ex-wife of ISIS leader speaks out
Is ISIS changing its strategy?
Inside the $2 billion ISIS war machine
Where are the Arab nations in the fight against ISIS?
Why is ISIS so wealthy?
How does ISIS govern its territory?
ISIS and the power of terror
Reports: ISIS using civilians as shields
New ISIS propaganda video taunts U.S. and allies
ISIS videos show children training to kill
Yazidi women raped and sold by ISIS
ISIS defectors recall stories of horror
Where is ISIS getting their Toyotas from?
Who is in the fight against ISIS?
ISIS 'call to arms' raises terror threat levels
CNN crew forced to run amid ISIS rocket fire
Risking death to flee from ISIS
Video shows moment of suicide bombing
Majority of ISIS victims are Muslim
Several injured after ax attack on German train
How teen bombed youth soccer game
Wave of suicide attacks hits Saudi Arabia
Baghdad terror attack deadliest since 2003
Nearly 300 killed in ISIS-linked attacks in one week
ISIS hates this religious group the most
Iraqi F-16s take to the skies against ISIS
Is it ISIS, ISIL or Daesh?
Iraqis recount horrors of being human shields for ISIS
ISIS calls on Saudi supporters to kill relatives
Why is ISIS heading to Libya?
Iraqi town suffering from ISIS chemical attack
Pentagon claims 26,000 ISIS fighters dead in Iraq, Syria
ISIS defectors in Afghanistan
ISIS and the dam that could destroy a city
Ex-wife of ISIS leader speaks out
Is ISIS changing its strategy?
Inside the $2 billion ISIS war machine
Where are the Arab nations in the fight against ISIS?
Why is ISIS so wealthy?
How does ISIS govern its territory?
ISIS and the power of terror
Reports: ISIS using civilians as shields
New ISIS propaganda video taunts U.S. and allies
ISIS videos show children training to kill
Yazidi women raped and sold by ISIS
ISIS defectors recall stories of horror
Where is ISIS getting their Toyotas from?
Who is in the fight against ISIS?
ISIS 'call to arms' raises terror threat levels
CNN crew forced to run amid ISIS rocket fire
Risking death to flee from ISIS
Video shows moment of suicide bombing
Majority of ISIS victims are Muslim
Several injured after ax attack on German train
How teen bombed youth soccer game
Wave of suicide attacks hits Saudi Arabia
Baghdad terror attack deadliest since 2003
Nearly 300 killed in ISIS-linked attacks in one week
ISIS hates this religious group the most
Iraqi F-16s take to the skies against ISIS
Is it ISIS, ISIL or Daesh?
Iraqis recount horrors of being human shields for ISIS
ISIS calls on Saudi supporters to kill relatives
Why is ISIS heading to Libya?
Iraqi town suffering from ISIS chemical attack
Pentagon claims 26,000 ISIS fighters dead in Iraq, Syria
ISIS defectors in Afghanistan
Story highlights
A dozen people reportedly killed in ISIS captivity, UN refugee agency saysGroup says ISIS uses captives as human shields in fight against Iraqi troops
(CNN)ISIS militants have captured up to 3,000 people displaced from their homes trying to flee conflict zones in northern Iraq, the United Nations said Friday, reportedly killing 12 of them.
More than 4 million people have been displaced within Iraq.
The UN refugee agency said it had received reports that ISIS rounded up the thousands of internally displaced people Thursday from villages as they tried to escape to the city of Kirkuk.
Militants killed, hostages freed after ISIS attack on oil field near Kirkuk, Iraq
"Reportedly, 12 of the IDPs have been killed in captivity," the agency said in its daily Iraq update, using an acronym for internally displaced persons.
The battle for Mosul
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