Two US soldiers have been killed and nine wounded in northern Iraq.
The US military says they were shot by a gunman dressed in Iraqi army uniform near the town of Tuz Khormato, 210km (130 miles) north of Baghdad.
The Americans were among a group of US soldiers meeting Iraqi security forces at an Iraqi army compound.
The killings are the first US military deaths since US President Barack Obama declared an end to US combat operations in Iraq on 31 August.
"Eleven US soldiers were engaged with small arms fire, killing two and wounding nine, inside an Iraqi army commando compound," a US military statement said.
"The event occurred at approximately 1550 pm local time (1250 GMT) when a person wearing an Iraqi army uniform opened fire on the soldiers. The assailant was shot and killed and the soldiers were medically evacuated," it added.
The last US combat brigade left Iraq nearly two weeks ago - well before the deadline set by Mr Obama to cut the number of US troops in Iraq below 50,000.
Those remaining US troops are focusing on supporting Iraqi forces. All US forces are due to be removed by the end of the year.
BBC News
