President Trump says the U.S. is "locked and loaded" following an attack on a Saudi Arabian oil plant.
Yemen's Iran-backed Houthi rebels say they are behind the attack, which cut the state oil company's production output by half.
But US secretary of state Mike Pompeo has blamed Iran.
Kate Fisher reports from Washington
Yemen's Iran-backed Houthi rebels say they are behind the attack, which cut the state oil company's production output by half.
But US secretary of state Mike Pompeo has blamed Iran.
Kate Fisher reports from Washington