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

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.

A dozen people were killed Saturday during a "brutal" attack at the King Khalid International Airport in Riyadh, the Saudi General Authority of Civil Aviation said.

At least one of those killed was an American citizen, the agency said. The U.S. State Department didn't immediately return messages for comment.

The other slain victims included two Bangladeshi citizens, one Egyptian, one Jordanian, one Syrian, one Palestinian, and one Sudanese citizen, according to the Saudi agency.

At least 300 people were injured, the agency said.

The agency said the airport suffered "material damage, the extent of which is currently being assessed," the agency said.

There has so far been no claim of responsibility or comment from Yemen's Houthi rebels. The Iran-backed group claimed attacks on the airport earlier in the week which left three Saudi nationals dead. 

-ABC News' Jamie Dorrington