United States has confirmed that over 100 its troops diagnosed with brain injuries from Iran's missile attack in Iraq.

In a statement, Pentagon said that so far 109 U.S. service members hav been diagnosed with mild traumatic brain injury.

Earlier, Chairman of the Joint Chiefs of Staff Army General Mark Milley, said that the service members suffering from traumatic brain injuries have been diagnosed with mild cases.

Meanwhile, U.S. Republican Senator Joni Ernst said more answers were needed in this regard.