The claim came as witnesses reported several explosions across the Saudi capital, a day after a separate Houthi drone attack on the same airport killed one person and caused flight delays that continued into Thursday.
Operation Yemen Dawn, backed by 100 Saudi coalition aircraft, retook the town of Dhubab just north of the strait, as the Houthis claimed they struck Riyadh's international airport, an oil refinery and military bases across Saudi Arabia, and Pakistan and Turkey agreed to deploy troops to the kingdom.
The three signatories of the August Mecca Joint Defence Agreement met in emergency session in Riyadh and agreed to move immediately to "rapid deployment" of military forces, uniting NATO's second-largest army, the Islamic world's only nuclear state and the largest Gulf power.
The Saudi-led coalition said a drone hit the Taibah electricity distribution station, which supplies power to the Prophet's Mosque, one of Islam's holiest sites. The Houthis denied the claim, stating it was a "lie" to back previous allegations against the group.
Yanbu serves as the kingdom's primary crude export terminal on the Red Sea and is connected to its oil-producing regions near the Gulf coast by the East-West pipeline, also known as Petroline.