The Iraqi Security Media Cell announced the injury of four Iraqi air forces as a result of a missile attack targeting the Balad air base, which includes Americans, south of Salahuddin Governorate, north of Baghdad, after the escalating tension between Iran and the United States of America.

It added that eight Katyusha rockets landed on the base, without any further details.

The Balad base is one of the major air bases in Iraq, and there are many American advisers who provide advice and training to Iraqi forces, especially Iraqi pilots.

And the same base was previously subjected to similar attacks, the last of which was Thursday, when two rockets landed inside it without losses, while three Iraqi soldiers were wounded in another attack about a week ago.

The French Press Agency quoted an Iraqi military source as saying that the majority of the American forces left the base after the recent escalation between the United States and Iran on Iraqi soil, and indicated that only 15 American soldiers and one plane remain in the base.

Since the end of last October, Iraqi military bases have become the target of missile attacks, and dozens of rockets have landed on those bases, and one of them, on December 27, killed an American contractor.

The United States responded after two days by bombing Iraqi bases on the border with Syria, killing 25 Popular Mobilization Forces fighters, which include factions close to Iran but operating in an official framework within the federal forces.

The escalation then reached an unprecedented level, when Washington, at the behest of US President Donald Trump, killed the commander of the Iranian Quds Force, General Qassem Soleimani, and Abu Mahdi Al-Muhandis, deputy chief of the Popular Mobilization Authority, by a plane airliner near Baghdad airport.

Iran responded last Wednesday by launching 22 ballistic missiles at the Iraqi Ain al-Assad air base in the west of the country, without casualties.

But the commander of the Iranian Revolutionary Guards, Hussein Salami, announced today, Sunday, in the Shura Council that the aim of these strikes on American targets in Iraq was not to "kill enemy soldiers", in reference to the American forces.

Since then, rocket attacks against American interests in Iraq continue almost daily, especially on the Green Zone in the center of the capital, where the US embassy is located.

The Iraqi parliament voted early last week on a resolution authorizing the government to end the presence of foreign forces in the country, but the US President stipulated that Iraq pay the costs that the United States spent on facilities it built there.