"The Iraqi government condemns the ongoing escalation," government spokesman Bassem al-Awadi said in a statement, adding that it was willing "to collaborate on establishing fundamental rules to prevent further repercussions in the region and curb the escalation of conflict".

The attack against Tower 22, a logistics base located at Jordan's border with Syria, killed three US troops and wounded 34.

It is the highest number of American casualties in a single incident since pro-Iran groups in October escalated their attacks against US and anti-jihadist coalition forces.

"Have no doubt -- we will hold all those responsible to account at a time and in a manner of our choosing," US President Joe Biden said on Sunday has he blamed "radical Iran-backed militant groups" for the attack.

Since mid-October, there have been more than 150 drone or rocket attacks against US and coalition forces in Iraq and Syria.

The majority have been claimed by the Islamic Resistance in Iraq, a loose alliance of Iran-linked armed groups that oppose US support for Israel in the Gaza conflict and wants them out of Iraq.

None of the pro-Tehran groups in Iraq, Syria or Yemen has so far claimed responsibility for the drone strike that killed the US soldiers.

But on Sunday the Islamic Resistance in Iraq claimed to have launched three drone attacks at bases in Syria, including near the Jordanian border.