Iran live updates: Iran-backed Houthis blamed for Saudi airport strike that killed 12, including American

President Donald Trump on Saturday night told reporters that the attack on the King Khalid International Airport in Riyadh was "terrible" and that he would speak with Crown Prince Mohammed bin Salman.

“I think it's terrible,” Trump said of the attack.

Asked if the Saudis are able to defend themselves, Trump said: "Well, they're able to defend. Look, the Saudis are good fighters, but I think the attack was a terrible thing."

Later he said he had not yet spoken with bin Salman, but that he would, adding "What happened in Saudi Arabia is not acceptable."

-ABC News' Fritz Farrow

U.S. Central Command said it disabled a commercial cargo vessel in the Gulf of Oman after the ship’s crew "ignored repeated warnings and attempted to run the ongoing naval blockade against Iran" on Saturday.

"A U.S. military fighter jet struck the stern of Panama-flagged M/V Ocean Molica (also known as the “Arika Sun”) with a precision munition, fully disabling the ship’s propulsion without harming the crew," CENTCOM said in a statement posted on social media.

Secretary of State Marco Rubio, in a statement posted on X, confirmed that an American citizen was killed in the strike on King Khalid International Airport in Saudi Arabia on Saturday.

Rubio said the United States "strongly condemns the recent attacks on the Kingdom of Saudi Arabia by the terrorist Houthis."

"These reprehensible attacks demonstrate a blatant disregard for innocent civilian life. They must stop now," he said. "We stand with the Kingdom of Saudi Arabia and its people and extend our condolences to the victims and their families."

-ABC News' Lauren Minore

Saudi military spokesmanTurki Al-Maliki blamed Saturday's deadly attack on King Khalid International Airport in Riyadh on the Iran-backed Houthis, according to a statement posted to social media.

Houthis were also blamed for attacks earlier this week at the airport that killed three Saudis, including a pilot.