Washington: Several US troops were injured in the January 8 Iranian missile attack one of the two American bases in Iraq, despite the Pentagon initially saying that no service member was hurt, it was reported on Friday. As many as eleven service members of United States of America were flown out of Al Assad Air Base in Iraq and treated for concussion symptoms after Iran's rocket attack targeting two Iraqi military bases earlier this month, a spokesman for U.S. Central Command revealed Thursday night.

President Trump and U.S. officials had said earlier that no Americans were killed or injured in the Jan. 8 attack. However, now a US military official told CNN that 11 service members had been injured in the attack.

"While no U.S. service members were killed in the January 8 Iranian attacks on Al Asad Airbase, several were treated for concussion symptoms from the blast and are still being assessed," the US-led military coalition fighting ISIS in Iraq and Syria said in a statement on Thursday.

Several U.S. troops "were treated for concussion symptoms from the blast and are still being assessed. As a standard procedure, all personnel in the vicinity of a blast are screened for traumatic brain injury, and if deemed appropriate are transported to a higher level of care," Capt. Bill Urban, the Central Command spokesman, said Thursday.

On January 8, Iran had launched tens of surface-to-surface missiles on the two Iraqi military bases hosting US military and coalition personnel at Ayn al Asad and Erbil, which was in retaliation to the January 3 killing of Iranian Major General Qasem Soleimani in an American drone attack near the Baghdad airport.