At least three rockets struck Baghdad’s fortified Green Zone near the American Embassy late on Tuesday, Iraqi security officials said.
It comes a day after an attack on a nearby training base holding US-led coalition troops and NATO personnel.
It was the fourth attack of its kind in a week.
The rockets hit the Green Zone, the seat of Iraq’s government and home to several foreign embassies.
Myles Caggins, spokesman for the coalition, said the rockets fell at least 1.2 miles from the embassy.
There were no immediate reports of casualties.
The Iraqi army said the previous evening, rockets hit the Basmaya base near the Iraqi capital.
The base is home to coalition forces and NATO trainers, however there was no immediate confirmation of the attack from the coalition and no militant group claimed responsibility.
The latest attacks follow a rocket strike on Camp Taji last Wednesday which killed three coalition service members, including one British and two American service personnel.
British Army reservist medic Lance Corporal Brodie Gillon, who was killed in the attack, was described as "larger than life" and "hugely popular".
The US responded by carrying out air strikes against Iran-backed militia facilities suspected of carrying out the Camp Taji attack.
However, the Iraqi military said the air strikes killed five security force members and a civilian.
Days after the first attack on Camp Taji, the base was hit again.
More than a dozen rockets were said to have landed inside the base - wounding five soldiers.
Cover image: Library picture of the US embassy in Baghdad (Picture: US Department of Defense).