Some US government employees from the US Embassy in Baghdad and its consulate in Erbil have been ordered to leave Iraq.
In a statement, the US State Department said: "Normal visa services at both posts will be temporarily suspended".
A US State Department spokesman said the decision to withdraw the staff was based on escalating tensions between Washington and Iran.
He, however, didn't give details on how many personnel were leaving.

Iran denies talks with US after Trump postpones strikes on power grid
Ukraine's Zelenskyy says Russia preparing new massive attack
Rockets launched from Iraq’s Mosul towards US base in Syria
One killed, 77 hospitalised after Colombian military plane crashes
Hong Kong police given new powers to obtain phone, computer passwords
ICE agents begin deploying at some US airports
Air Canada jet collision shuts LaGuardia; pilots killed, dozens injured
Kuwait launches probe into espionage, state security cases
