BAGHDAD — Four U.S. Marines were killed in fighting in Anbar province, and three soldiers were killed by a roadside bomb in northern Iraq, the military said Friday.

The four Marines assigned to Multi National Force — West were killed Thursday in combat in Anbar, a predominantly Sunni province west of Baghdad.

Three Task Force Lightning soldiers also were killed Thursday when a bomb exploded near their vehicle in the northern Nineveh province, the military said.

CAIRO, Egypt — The first new images of Osama bin Laden in nearly three years will be released ahead of the sixth anniversary of the Sept. 11 attacks, al-Qaida's media arm said.The Department of Homeland Security said Thursday it had no credible information warning of an imminent threat to the United States, and analysts noted that al-Qaida tends to mark the Sept. 11 anniversary with a slew of messages.Still, bin Laden's appearance would be significant.The al-Qaida leader has not appeared in new video footage since October 2004, and he has not put out a new audiotape in more than a year.