The Iran-backed Houthi Rebels say a string or overnight airstrikes targeted the Red Sea island of Kamaran, the Qanawis district north of the port city of Hodeida and the province of Jawf. The Houthi-run al-Masirah satellite television network on Tuesday blamed Saudi Arabia which didn't immediately comment. The airstrikes come hours after Saudi Arabia sounded air raids Monday evening in the capital, Riyadh, where residents heard explosions.