The U.S. military says coalition troops killed three terrorists, including an al-Qaida weapons dealer, in a raid in the Baghdad area Tuesday morning.

Elsewhere in Baghdad, Iraqi security officials say a bomb blast killed three people and wounded seven others.

A U.S. military statement Tuesday says an Iraqi soldier was fatally wounded during an incident with an American Marine at a guard post in the Fallujah Government Center on December 30.  The military says it has launched a criminal investigation, and the Marine has been assigned to administrative duties. 

In a separate statement, the U.S. military says that during the past week, Iraqi forces have detained more than 60 people in raids between the cities of Ramadi and Fallujah.

U.S. military officials also report that an American soldier was killed Monday in a roadside bomb blast southwest of the Iraqi capital.

Meanwhile, a Sunni politician told Al-Arabiya television that U.S. aircraft bombed his offices and a nearby home Monday, killing a family of four and two workers from his political party.

But the U.S. military says the six were suspected terrorists and that they were killed during a raid on a suspected al-Qaida safe house in Baghdad.

Some information for this report was provided by AFP and AP.