U.S. officials say Iran fired six ballistic missiles and 29 drones at Prince Sultan Air Base in Saudi Arabia, wounding at least 15 U.S. service members on Friday. The Iranian strike also destroyed the U.S. military’s E-3 Sentry radar aircraft — the first time the $300 million plane has been lost in combat.

On Saturday, Yemen’s Houthi rebels fired a barrage of ballistic missiles at southern Israel for the first time since the war began, targeting what the group called “sensitive Israeli military sites.”

Meanwhile, Ukrainian President Volodymyr Zelensky signed air defense cooperation agreements with Qatar and the United Arab Emirates on Saturday, after signing a similar deal with Saudi Arabia during his visit to the kingdom on Thursday. Ukraine has sent anti-drone experts to all three Gulf countries, as Iran has been targeting infrastructure in the region using drones similar to ones used by Russia. On Sunday, Zelensky also visited Jordan for security talks.