Gunmen pretending to be an official security force opened fire on police at numerous checkpoints in Haditha, Iraq, early Monday, killing 27, authorities said.
The Islamic State of Iraq has claimed responsibility for Thursday's attacks in that country that killed dozens of people and wounded hundreds more.
Nature abhors a vacuum, but terrorism relishes one. And Iraq appears to be offering new space for al Qaeda and other militant groups as political rivalries and sectarian animosities deepen.
Al Qaeda in Iraq claimed responsibility Tuesday for a string of attacks that killed almost 70 people and wounded more than 200.
CNN's Arwa Damon reports on a suicide car bomber that passed through six security checkpoints before detonating in Iraq.
Nature abhors a vacuum but terrorism relishes one. And Iraq appears to be offering new space for al Qaeda and other militant groups, as political rivalries and sectarian animosities deepen.
An Iraq expert claims that the violence in Iraq is an attempt to re-create sectarian conflict on a large scale.
A series of bomb attacks throughout Iraq left 35 people dead and scores injured, officials with Iraq's Interior Ministry and police said Sunday.
A car bomb exploded outside a Catholic church in central Kirkuk, Iraq, early Tuesday, wounding at least 20 people, authorities said.
An Iraqi prisoner grabbed a police officer's gun while being moved from a detention cell Sunday and opened fire, triggering a gunbattle between prisoners and police officers that lasted for hours and left 17 people dead, a military spokesman said.
The leader of a Muslim fundamentalist militant group was among 12 arrested in connection with a deadly church siege in Baghdad last month, Iraq's Interior Ministry said Saturday.
Three bombs left outside three Christian homes in western Baghdad detonated Tuesday evening, wounding at least three people, an Interior Ministry official said.
All Christians in the Middle East are now "legitimate targets," al Qaeda in Iraq announced Wednesday, as the group's deadline for Egypt's Coptic church to release alleged Muslim female prisoners expired.
A militant group claimed responsibility for two car bombings in Baghdad on Sunday, brazen attacks that killed at least 29 people and wounded 111.
Insurgents apparently tied to al Qaeda attacked a checkpoint in western Baghdad and killed five police officers early Tuesday, officials said.
Islamic militants with ties to al Qaeda claimed responsibility Thursday for this week's suicide attack on a television station in Iraq that killed at least six people and wounded 20 others.
Al Qaeda in Iraq has confirmed in a statement posted online that two of its two most senior leaders have been killed.
The death toll from three suicide attacks in the central Iraqi city of Baquba climbed to 33 on Thursday, police said.
A suicide bomber ended a series of deadly attacks in central Iraq by detonating explosives in a hospital emergency ward where victims of two earlier blasts were being treated.
A Sunni extremist leader has denounced the upcoming Iraqi national elections and warned of insurgent acts against the Shiite-led government.
Shia TV stations use images of historical atrocities by the Baath party to fuel political paranoia. Arwa Damon reports.
Islamic State of Iraq -- an umbrella group which includes al Qaeda in Iraq -- said it had carried out a string of vehicle bomb attacks that killed at least 36 people in Baghdad Monday.
Iraq is investigating possible corruption in the purchase of bomb detectors experts say are fake. CNN's Morgan Neill reports
Bombers struck Thursday, killing seven people in two volatile locations west and north of Baghdad.
Al Qaeda's umbrella group in Iraq on Thursday claimed responsibility for a string of suicide car bombings that killed 127 people and wounded 448.
Iraqi officials on Tuesday released security camera video of two weekend bombings that killed at least 155 people -- the deadliest attacks in the capital in more than two years.
An umbrella group affiliated with al Qaeda in Iraq claimed responsibility Tuesday for a pair of weekend bombings that killed 160 people in Baghdad.
The Iraqi government said Friday it has arrested members of a cell believed responsible for Wednesday's truck bombings in which more than 100 people were killed.
The Iraqi government released what it said was the confession of a top terrorist leader in the country Monday, nearly a month after the government claimed to have captured him.
The U.S. Army has filed a criminal complaint in Iraq against 12 people suspected in an ambush south of Baghdad nearly two years ago that left seven U.S. soldiers dead, the military said Sunday.
The man said to be the leader of an al Qaeda front group in Iraq is heard in a new audiotape blasting the U.S. president's plan to withdraw U.S. troops from that country.
The leader of an al Qaeda front group in Iraq is urging the "new rulers of the White House" and presidential allies from "Christian nations" to remove their forces from Iraq, Afghanistan, and other Muslim regions.
Iraqi Security Forces captured 66 people believed to be connected to al Qaeda in Iraq terror cells, the U.S. military said Thursday.
Osama bin Laden's top lieutenant has conveyed leaders' dissatisfaction with al Qaeda's operations in Iraq, according to the U.S. military, which says it has uncovered letters authored by the terror outfit's No. 2 man.
Coalition forces killed nine Iraqi civilians, including a child and two women, and wounded three others near Iskandariya, Iraq, over the weekend, police and a U.S. military spokeswoman said Monday.
A major movement of Iraqi forces gathered on Sunday in Mosul as a prelude to a planned offensive against Islamic fighters loyal to al Qaeda, an Iraqi government spokesman said.
The U.S. military on Wednesday announced the arrest of a senior leader of al Qaeda in Iraq, an insurgent who, the military said, is casting himself as a "conduit" between the top leaders of al Qaeda and al Qaeda in Iraq.
Al-Qaeda's deputy leader Ayman al-Zawahri sought to bolster the terror network's main arm in Iraq in a new video released Thursday
A Sunni insurgent group on Monday posted video of the military identification cards of two missing American soldiers in Iraq.
The Islamic State of Iraq -- a Sunni insurgent coalition that includes al Qaeda in Iraq -- issued a statement Monday saying it is holding three American soldiers and warning the U.S. military to call off its search.
Nine Iraqi security officers were blindfolded and shot execution-style as they kneeled on the ground, according to an online video purportedly posted by an insurgent group linked to al Qaeda in Iraq.
Suicide car bombings at a market and at a police checkpoint in Ramadi killed 13 people and wounded 35 others Monday, police said.
A U.S. military commander said Thursday that an al Qaeda in Iraq militant believed to be involved in last year's kidnapping of journalist Jill Carroll has been killed.
Reports of fighting between al Qaeda in Iraq and Sunni militants surfaced Tuesday, the latest hints of rising tensions between the two allied groups.
Insurgents executed 20 members of Iraq's security forces who were seized last week, according to a claim posted on the Internet on Tuesday.
Iraqi militants claim to have "detained" 20 Iraqi security force members in response to an alleged rape that has heightened Sunni-Shiite tensions.
A man Iraqi officials arrested Friday was not militant leader Abu Omar al-Baghdadi as previously claimed.
Abu Omar al-Baghdadi, leader of the militant group Islamic State of Iraq, was arrested Friday in western Baghdad, the Iraqi Interior Ministry said.
An al-Qaeda-affiliated group says it killed 18 kidnapped Iraqi security guards, posting a video of the officers being shot in the back of the head while kneeling in a field.
The U.S. military is calling on all Iraqi leaders, Sunni and Shiite, to condemn the recent kidnapping and killing of 15 Iraqi police officers in retaliation for the alleged rape of a Sunni woman.
An Iraqi police commander was killed during an assault on at least six police officers in Iraq's capital Saturday, said an Iraqi Interior Ministry official.