Two U.S. soldiers were killed and one wounded late Saturday in an attack near the northern Iraqi city of Kirkuk, a military spokeswoman told CNN.
With the latest deaths, 338 U.S. troops have been killed in the Iraq war since it began in March -- 218 of those by hostile fire.
In a separate incident, U.S. forces in Fallujah -- west of the Iraqi capital -- came under attack Sunday, after their convoy hit a landmine or an improvised explosive device, eyewitnesses told CNN.
Video of the scene showed a huge cloud of smoke emanating from the scene of the attack, before several loud explosions -- apparently from the ammunition inside the U.S. military vehicle.
A crowd of bystanders watched on, some of them cheering.