BAGHDAD, Iraq - An Iraqi tribal chief in the turbulent city of Fallujah led a raid that freed four Jordanian hostages kidnapped a week ago, the chief said today.

A brother of one of the four hostages, Mohammed abu Jaafar said from Jordan that he'd spoken by telephone with his brother, Ahmad, who told him: "Now I am free. I was in the hands of evil people. Now I am in the hands of good people."

Also today, the Arab satellite network al-Jazeera reported that an al-Qaida-linked militant group in Iraq said it will free two Turkish hostages after their company promised to stop sending trucks to U.S. troops in Iraq.

Turkey's truckers association said it was halting deliveries to U.S. forces in Iraq immediately after Monday's release of a video showing militants shooting and killing truck driver Murat Yuce, in hopes of freeing the other two men.

Sheik Haj Ibrahim Jassam said he received word on Tuesday evening that four kidnapped Jordanians were being held in a house on the edge of the city of Fallujah, 40 miles west of Baghdad. He said that once the raid began, the kidnappers fled the house and the four men were brought to his house unharmed.

"I called upon my brothers and tribesmen to free the hostages, so we raided the house last night," Jassam told The Associated Press. "I'm glad that those innocent Muslims were freed."

The four men were abducted by a group calling itself "Mujahedeen of Iraq, the Group of Death." The kidnapping became known on July 27 when Dubai Television broadcast a videotape showing four men holding what appeared to be Jordanian identification cards.

The news came after a day of widespread violence in Iraq, when insurgents killed seven Iraqi security personnel and the U.S. military said guerrillas killed four Americans. Two others were killed in non-hostile incidents.

The American dead included two soldiers killed by a roadside bomb and two Marines who died after being wounded in fighting Monday.

The deadliest insurgent attack Tuesday came in a car bombing north of the city of Baqoubah, when a truck raced toward an Iraqi checkpoint guarding Kharnabad Bridge, officials said.

The truck attempted to merge into a U.S. military convoy heading toward the bridge, but a soldier driving one of the vehicles forced it off the road before it detonated, said Maj. Neal O'Brien, a U.S. Army spokesman. No U.S. troops were injured, he said.

The blast killed four members of the Iraqi National Guard and wounded five others, said Maj. Gen. Waleed Khaled Abdulsalam, Baqouba's police chief.