Drones and missiles targeted shipping in the sea, but ships from the U.S. and British navies shot down the projectiles. No damage was reported. The rebels say they aim to stop Israel's war on Hamas.
The U.S. and other nations are creating a force to protect ships transiting the Red Sea that have come under attack from Houthi-controlled areas of Yemen, Defense Secretary Lloyd Austin announced.
The war draws together Iran-backed Shia and Sunni militants in what appears to be closer cooperation between groups that differ in ideology but are united by opposition to Israel and the U.S.
While Abu Dhabi police did not immediately offer any suspects, Yemen's Houthi rebels claimed responsibility for an attack targeting the United Arab Emirates.
The designation has broad implications — not just for the Iran-backed group, which controls Yemen's capital, but also for international organizations trying to help residents badly in need of aid.