U.S. and Iraqi forces are continuing a major security operation in restive al-Anbar province, west of Baghdad.
American military officials say strict security measures were imposed Sunday on several cities along the Euphrates River, including Ramadi, where a curfew was ordered.
In another development, the Indonesian foreign ministry confirmed Monday that kidnappers in Iraq have freed two Indonesian journalists who were abducted last week.
Meanwhile, Iraqi officials in the northern city of Mosul say an anchorwoman for a regional television station was abducted at gunpoint late Sunday.
A videotape said to come from al-Qaida has been seen on al-Jazeera television. The tape carries a message in the name of the terrorist group's No. 2 leader, Ayman al-Zawahiri, denouncing U.S. calls for reform in the Muslim world.
Some information for this report provided by AFP and Reuters.