SANAA, Aug. 11 (Xinhua) -- Yemen's Houthi rebels said they had launched multiple drone attacks on King Khaled Air Base in the southwest of Saudi Arabia on Sunday night, Houthi-run al-Masirah TV reported.

The bomb-laden drones targeted radars at the air base in Khamis Mushait city.

Saudi Arabia has yet to confirm the alleged attack.

Houthis have recently stepped up drone attacks on Saudi Arabia, but most of the drones were intercepted by the kingdom's air forces.

Saudi Arabia has been leading an Arab military coalition against Iran-allied Houthis in Yemen for more than four years in support of the exiled internationally-recognized government of Yemeni President Abd-Rabbu Mansour Hadi.