The US military suffered its first combat fatalities since March in the Iran war, with the Pentagon saying two service members were killed and another was missing during defensive operations in Jordan, as hostilities ramped up in the region and further endangered a fragile cease-fire.

Two U.S. service members were killed in action while "partner forces defended against Iranian ballistic missile and drone attacks," U.S. Central Command said Saturday.

CENTCOM says service members died as 'partner forces defended against Iranian ballistic missile and drone attacks'.