Suicide bomber targets Iraqi army recruiting center
A suicide car bomber kills four at an Iraqi army recruiting center.
CNN's Jane Arraf looks back at the humanitarian killed in Iraq.
Marla Ruzicka's parents say she was a bright light in a dark cloud.
BAGHDAD, Iraq (CNN) -- A blast from a suicide car bomb Tuesday near Baghdad's Adhamiya Palace killed four people and wounded 38 others, authorities said.
Two Iraqi army personnel and two recruits died in the 11:30 a.m. (3:30 a.m. ET) attack. The wounded included eight Iraqi soldiers and 30 recruits.
Police said the bomber used a green Kia minibus.
The palace formerly used by Saddam Hussein is now a base for Iraqi and U.S.-led coalition forces. The Iraqi military also uses it as a recruitment center.
Also Tuesday, Iraq's transitional National Assembly, which has not chosen a Cabinet, heard an allegation by an assembly member of mistreatment by American-led multinational forces at a checkpoint.
Fattah al-Sheikh -- an assembly member whose party has ties to radical Shiite Muslim cleric Muqtada al-Sadr -- said troops mistreated him at a checkpoint in the heavily fortified Green Zone while he was on his way to the assembly. He later denounced the United States for the incident.
Assembly speaker Hajim al-Hassani said the body objects to any mistreatment of a legislator.
Coalition forces issued a statement saying, "an immediate preliminary investigation" showed that al-Sheikh's vehicle left a long line of traffic, crossed a median and drove toward the a checkpoint from the opposite traffic lane.
After the assemblyman parked, American soldiers trying to defuse a verbal and physical altercation between al-Sheikh and an interpreter supporting coalition forces separated the two and held onto al-Sheikh "momentarily," the statement read.
Brig. Gen. Karl R. Horst, deputy commander for maneuver, MND-Baghdad, said the military regrets the incident.
Meantime, the U.S. military is investigating the death of a 51-year-old male detainee at Camp Bucca prison in southeast Iraq. The death at the facility, which holds 6,000 detainees, appears to be from natural causes, the military said.
"... As a normal course of action an investigation into the circumstances surrounding the death will be conducted," the statement read.
Other developmentsInsurgents killed Iraqi Defense Ministry adviser Adnan Al Qaraghouli and his son Monday night in the southern Baghdad neighborhood of Dora, a ministry spokesman said. Al Qaraghouli was an adviser to interim Defense Minister Hazem Sha'alan. Al Qaraghouli's son, Capt. Alaa al-Din, was in the Iraqi army.Two U.S. senators Monday remembered Marla Ruzicka, the American aid worker killed in Iraq during the weekend, as a tireless advocate for families of those killed and wounded in the 2-year-old war. Ruzicka, 28, was the founder of the Campaign for Innocent Victims in Conflict. The group interviews families who lost relatives or property in the fighting in Iraq and uses the information to seek reparations from the U.S. government. (Full story)About 2,000 Iraqi security forces, with backup from U.S. helicopters, found hidden weapons caches during operations south of Baghdad, a senior U.S. official said Monday. They discovered a firing range, a bomb manufacturing plant and at least one 200-pound bomb in Salmak Pak, about 20 miles (32 kilometers) from the capital, the official added.A blast from a roadside bomb south of Baghdad killed an American soldier late Sunday and wounded another, the U.S. military said. Also, mortars hit Saturday night in a U.S. military camp in Ramadi, west of Baghdad, killing three soldiers and wounding seven others, including three seriously, the military said. The number of U.S. troops killed in the Iraq war stands at 1,557, the military said.Texas oil executive David Chalmers Jr. and a business associate, Ludmil Dionissiev, pleaded not guilty Monday to U.S. charges they bribed Iraqi government officials in Saddam's regime as part of the U.N. oil-for-food program. (Full story)
CNN's Ryan Chilcote, Kevin Flower, Ayman Mohyeldin, Aneesh Raman and Mohammed Tawfeeq contributed to this report.