Sanaa: The Iranian ballistic missile attack that killed two US servicemembers at a Jordanian air base struck prefabricated housing units where troops were sleeping, the Wall Street Journal reported Monday, citing US officials familiar with the matter.

According to Anadolu Agency, the attack on Muwaffaq Salti Air Base was one of three separate missile strikes on the base within a 24-hour period. The remains of a third person have also been recovered at the site and are being examined, the Journal reported.

The report added that the first missile strike damaged the base's gym after troops were alerted by warning sirens, injuring several personnel as they sought shelter. A second missile later hit an empty aircraft hangar, while the third struck containerized housing units where soldiers had been sleeping.

The Pentagon has identified the two servicemembers killed in the attack as First Lt. Tyler J. Feehan of the state of Hawaii and Pvt. Isabella Gonzales of Texas. A third servicemember remains missing.