TAMPA, Fla. — Three U.S. troops were killed and more than 30 were injured when a drone packed with explosives struck a base in northeast Jordan, near the Syria border.

They are the first U.S. deaths in months of strikes by Iranian-backed militant groups since the Israel-Hamas war started Oct. 7. The troops have not been identified pending notification of next of kin.

The drone made impact near a shelter where some troops were sleeping, according to two U.S. officials.

Eight of the injured personnel were evacuated from Jordan to receive higher-level care and are stable, U.S. Central Command said.

It’s not clear whether all of the injured troops were members of the Army or other services.

The attack happened at a logistics support base in the northeast Jordan. About 350 U.S. Army and Air Force personnel are deployed at the base, which provides support including "to the coalition for the lasting defeat of ISIS," Central Command said.

In a statement in the immediate aftermath, President Joe Biden said the troops were killed by “radical Iran-backed militant groups operating in Syria and Iraq,” adding that “we are still gathering the facts of this attack.”