In Saudia Arabia, Yemen's Houthis launched a fresh attack towards Abha airport using bomb-laden drones.
In a statement, group's military spokesman said attack hit vital facilities in the airport and caused a suspension of the air traffic.
There has been no confirmation from Saudi Arabia yet on the alleged attack.
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.