The US Military has said 11 of its troops were treated for symptoms of concussion after an Iranian missile attack targeted an Iraqi base where US forces were stationed and no service members were hurt.

Captain Bill Urban, spokesman for US Central Command, said in a statement while no us service members were killed in the January 8 Iranian attack on Al-Asad airbase several were treated for concussion symptoms from the blast and are still being assessed.

He said as a measure of caution some service members were taken to us facilities in Germany or Kuwait for follow-on screening.

The January 8 attack was retaliation for a US drone strike in Baghdad on January 3 that killed Qassem Soleimani, the commander of the elite Quds force of Iran’s revolutionary guard.