An American soldier has been killed by a roadside bomb north of Baghdad, and seven people were wounded by a hand grenade thrown at a government office in the northern city of Mosul.
A U.S. military spokeswoman says the soldier was traveling in a convoy near the town of Baqouba when the bomb exploded. Another soldier in the convoy was wounded by the blast. The soldiers were from the First Infantry Division, which recently arrived in Iraq.
Earlier Tuesday, Iraqi police say U.S. soldiers may have been the target of a hand grenade thrown at a government building in Mosul. Three policemen were among those wounded in that attack.
On Monday, one member of Mosul's city council was killed and another wounded when unidentified attackers fired on their vehicle.
Also in northern Iraq Monday night, police in Kirkuk say three people were accidentally killed by stray bullets as Kurds fired into the air to celebrate the signing of an interim constitution for Iraq that recognizes some autonomy for Kurdish areas.
Shortly after Iraq's Governing Council signed the interim constitution in Baghdad, leaders from Iraq's Shi'ite majority - including Grand Ayatollah Ali al-Sistani - repeated objections to clauses they believe give too much power to Kurds and other minorities.
The interim constitution is scheduled to go into effect when an Iraqi transitional government takes office June 30. That government will work on a permanent constitution, and prepare for elections no later than January.
Some information for this report provided by AP, Reuters and AFP.