An Iraqi Army officer said 15 suspects had been arrested in Baghdad's troubled Haifa Street section. He spoke on condition of anonymity because of security concerns.
For U.S. troops, today was business as usual, reports CBS News chief foreign correspondent Lara Logan, even as their commander in chief prepared to tell the nation the strategy they're carrying out now is not working.
That's not something soldiers from the 1st Cavalry Division could afford to think about, as they supported their Iraqi Army partners on a joint patrol through the most dangerous Sunni neighborhood in Baghdad.
The Haifa Street region has come under attack by Americans several times in the war, only to see the return of militant gunmen when the military pressure eased.
Also Wednesday, the U.S. military said three soldiers had died from combat wounds in Iraq.
A Task Force Lightning soldier assigned to 3rd Brigade Combat Team, 1st Cavalry Division died Tuesday from a gunshot wound sustained in the Diyala province northeast of Baghdad, the military said in a statement.
Two more soldiers died the same day in Iraq's western Anbar Province, another statement said. One was assigned to the 1st Marine Expeditionary Force Headquarters Group, and one was assigned to 1st Brigade, 1st Armored Division.
All three names were withheld pending family notification.
In other developments:
A prominent hard-line leader of Iraq's Sunni Arabs lashed out against new security plans by Mr. Bush and Iraq's prime minister, saying in an interview published Wednesday that they were plotting to kill Sunnis.
Iraqi Defense Minister Abdul-Qader al-Obaidi said the new security plan announced by Prime Minister Nouri al-Maliki days earlier had three or four phases, and that "the first stage has already begun."
Al-Obaidi did not elaborate on what steps the government had taken or say whether the Haifa Street operation was part of the security plan. He said that offensive was launched in response to the killings of 27 people there on Saturday.
"This is what made us decide to go into Haifa street," al-Obaidi told The Associated Press. He added that at least seven foreign Arabs were captured, including some who entered Iraq recently.
An Iraqi Army general, speaking on condition of anonymity because of the sensitivity of the plan, said the Haifa Street battle was not part of the new Baghdad security plan.
U.S. tanks lined the streets in the neighborhood, a militant Sunni Arab stronghold located just north of the heavily fortified Green Zone — home to the U.S. Embassy and other facilities.