U.S. forces struck insurgent targets in Baghdad's Sadr City neighborhood late Monday, after car bombings in the capital and Mosul killed 24 people earlier in the day.
In addition to the airstrikes on Sadr City, U.S. forces bombed targets in Fallujah.
In Washington, U.S. Defense Secretary Donald Rumsfeld suggested that more raids like the massive one launched late last week in Samarra would be needed to stabilize Iraq and defeat the insurgents.
In other developments, an insurgent attack killed an American soldier in Baghdad late Monday.
And militants freed two Indonesian women they held hostage for several days. Radical Shi'ite cleric Moqtada al-Sadr also called on insurgents to free two French hostages because he says France is not part of what he calls the occupation of Iraq.