BREAKING: Iranian rockets target US air base in Iraq

Several rockets have hit an airbase in Iraq that houses US troops, days after Iran's Supreme Leader Ali Khamenei vowed "severe revenge" for top general Qassem Soleimani's death.

Iran's Fars News Agency posted a video on Twitter late on Tuesday depicting what it said were Iranian missiles being fired at Ain al-Assad military base in Iraq. 

A US official confirmed to Reuters that rockets have been fired at the base.

CNN said 10 rockets targeted the air base.

Iran's Revolutionary Guard Corps, whose Quds Force was led by the slain Soleimani, claimed responsibility for the attack, saying that it was in response to the United States' "criminal and terrorist operation", referring to the assassination.

"We are aware of the reports of attacks on US facilities in Iraq," White House spokeswoman Stephanie Grisham said in a statement.

"The President has been briefed and is monitoring the situation closely and consulting with his national security team."

For more on this breaking news coverage, check out our story here.