DUBAI: The Arab Coalition said Saturday that it it has intercepted and destroyed an explosive-laden drone launched by the Houthi militia towards the city of Khamis Mushait in Saudi Arabia, according to Al Arabiya TV.  The coalition said it was taking “all necessary operational measures to protect civilians against terrorist assaults.” The Iran-backed militia group on Friday said it targeted an oil refinery in the Saudi capital of Riyadh. The kingdoms energy ministry said the attack caused a fire but was brought under control.