A coalition spokesman said forces are tracking missile and drone threats after intercepting two drones aimed at the Riyadh area, according to Anadolu Agency.
A Houthi military spokesman said the attacks killed and wounded hundreds of servicemen from the Saudi-led coalition, a claim that has not been independently verified.
A Saudi-led coalition spokesman said air defenses shot down a drone near the holy city of Mecca, calling it the second such attempt since 2017, while Yemen's Houthi movement denied responsibility.
Houthi forces launched coordinated strikes on Khamis Mushait, Abha and Taif, damaging homes and vehicles, according to a Saudi-led coalition spokesman.