RIYADH, Oct. 15 -- Amnesty International says the Houthi missile attack on Riyadh's main airport killed 13 people, one more than the 12 Saudi authorities reported, and that deliberately striking a civilian airport "can amount to a war crime." The rights group's statement, issued October 14, does not stop at the Houthis: it also cites Saudi air strikes that have resumed in Yemen.

Heba Morayef, Amnesty's regional director for the Middle East and North Africa, said the risks to civilians in both countries "are rapidly increasing each day this conflict escalates." The October 10 attack on King Khalid International Airport wounded hundreds more, Amnesty said, and was the deadliest attack in Saudi Arabia in over a decade.

The group's wording ...