Non-essential US embassy staff and their dependants in Baghdad are evacuating from Iraq due to heightened security risks, US government sources said on Wednesday.
Officials did not say exactly what prompted the removal, however in recent days talks over Iran's nuclear programme appear to have stalled.
A US state department official told the BBC: "We are constantly assessing the appropriate personnel posture at all our embassies.
"Based on our latest analysis, we decided to reduce the footprint of our mission in Iraq."
US President Donald Trump told a podcast on Wednesday that he was growing less confident that a deal could be reached over Iran's nuclear programme.
