Two United States soldiers were killed and nine injured Tuesday in a firefight in northern Iraq, the military said, dpa reported.
The incident took place "inside an Iraqi Army commando compound" near Tuz, about 150 kilometres north-west of the capital Baghdad, according to a statement released by the US military in Iraq.
A single assailant was apparently behind the assault and he was shot dead.
The two soldiers are the first US deaths in Iraq since President Barack Obama declared the end of military operations on August 31.