Syrian air strikes against Islamic State kill 31
17 of the 31 killed are reported to be civilians.
Video of beheading of US journalist Steven Sotloff is authentic, Obama says
The video released by the Islamic State Tuesday shows the killing of a second American journalist. The same group murdered James Foley last month.
Dozens of minority Iraqi women 'sold into marriage' by IS militants
The Syrian Observatory for Human Rights said it was aware that some 300 Yazidi women had been kidnapped and transported to Syria by the jihadists.
Iraqi forces reportedly break Islamic State's 2-month siege of Amerli
The advance of the Iraqi forces comes after the US military carried out air strikes overnight on IS militant positions near the town.
'If it wasn’t for the Kurdish fighters, we would have died up there'
Yazidis who escaped the Sinjar mountains say the US airstrikes were all very well, but if it weren't for the Syrian Kurds, they wouldn't have made it.
On Location Video: The Yazidis who survived the assault on Sinjar
The Islamic State killed hundreds and kidnapped thousands when it overran the city in northern Iraq. This is the story of those who got away.
'Revenge attacks' in Iraq kill more than 20
The bombings follow a Shia attack on a village mosque in Diyala Province on Friday in which 68 people died.
The US considers going after the Islamic State in Syria
'We will do what's necessary to protect Americans and see that justice is done for what we saw with the barbaric killing of Jim Foley,' said White House deputy national security adviser Ben Rhodes.
Decoding Obama's 'relentless' quest for justice against the Islamic State
The president has promised to ‘see that justice is done’ for the brutal killing of journalist James Foley. But what does that actually mean?
US opens criminal probe into journalist James Foley's killing
Outraged US allies have pledged to help in the battle against the Islamic State, sending in weapons and other aid to Kurdish forces fighting the extremists in northern Iraq.
Aid airlift to northern Iraq has started, UN says
'This is a massive logistics operation ... to help the hundreds of thousands of desperate people who have fled suddenly with nothing but their lives,' UN High Commissioner for Refugees Antonio Guterres said.
UN launches 'significant aid push' for half a million people fleeing violence in Iraq
'The fact that you see people fleeing via Syria to safety speaks very much to how desperate the situation is,' UNHCR spokesman Adrian Edwards said.
Iraqi and Kurdish forces have regained control of Mosul dam, Obama says
The latest northern Iraq offensive by Islamic State militants has rattled the Baghdad government and its Western allies.
Kurds retake Iraq's main dam from Islamic State
Bolstered by US airstrikes against the extremist forces, a Kurdish official says peshmerga fighters 'liberated' Mosul dam.
UK must use its 'military prowess' to help stop the Islamic State: prime minister
David Cameron used his toughest words yet on the crisis.
This 84-year-old woman crawled on her knees to safety to escape the Islamic State
Extremist militants in Iraq demanded that this elderly Yazidi woman convert to Islam or die. She said she'd rather die. Here's her amazing story of survival.
Islamic State kills dozens in northern Iraq 'massacre'
A senior official of the Patriotic Union of Kurdistan party put the death toll at 81.
US says 'far fewer' Yazidis are stranded on Iraq's Mount Sinjar than feared
For those who managed to escape the siege, the relief of reaching relative safety was tempered by the spartan conditions of refugee camps.
This map shows why it's so hard to get much-needed aid to 1 million people displaced in Iraq
With the Islamic State taking over large parts of the country, it's almost impossible for aid groups to reach all those in need.
How scared should Americans be of the Islamic State?
The United States is grappling with the risk level of the extremist militants retaliating as Obama inserts military might into Iraq.
Arming the Kurds could be a big mistake for the US. Here's why
The Kurdish peshmerga are battling the Islamic State and winning the world's affection. But step back for a minute. There's reason to be concerned.
Kerry says Iraq's new leader could win more US support
Haider al-Abadi is seen as a far less polarizing, sectarian figure than Iraqi Prime Minister Nouri al-Maliki.
Political chaos grips Iraq amid deepening humanitarian crisis (LIVE BLOG)
With the Islamic State making new gains over Kurdish forces, the US is renewing its call for Iraqis to form a consensus government.
This man has lost 63 relatives to the Islamic State
IS militants have kidnapped nearly every member of Assad Haig's family. He'll risk his life to get them back.
Iraq says Islamic State killed 500 Yazidis, buried some victims alive
The Yazidis are followers of an ancient religion and are part of Iraq's Kurdish minority. Many of their villages were destroyed when Saddam Hussein's troops tried to crush the Kurds.
US launches strikes on Islamic State in Iraq (LIVE BLOG)
Here we go again.
60 Seconds on Earth: What it's like to be displaced by the Islamic State (VIDEO)
'We left our money, our house, everything behind and ran.'
Islamic State's advance forces thousands of Iraqi Christians to flee
The Islamic State sees Iraq's majority Shia and minorities such as Christians and Yazidis, a Kurdish ethno-religious community, as infidels.
Kurdish forces and Islamic State militants clash in northern Iraq
Meanwhile, Iraqi Prime Minister Nouri al-Maliki warned that any unconstitutional attempt to form a new government would open 'the gates of hell' in Iraq.
There are reports of the Islamic State executing dozens of Yazidis
The Yazidis in northern Iraq are used to being persecuted, but this attack was bad. The Islamic State captured Sinjar, forcing thousands from their homes.
True or false? 15 rumors about the Islamic State, fact-checked
Can you tell which are real and which are fake? Lots of news organizations couldn't.