dubai yemen houthi force shoot u.s. surveillance drone capital sanaa sunday houthi-controlled state news agency saba report houthi movement ally former president ali abdullah saleh control much northern yemen include sanaa battle saudi-led coalition try restore internationally recognize government president abd-rabbu mansour hadi unite state back saudi-led coalition provide intelligence weapons military source say houthi air defense shoot u.s. mq-9 surveillance drone jade area sanaa province saba report reuters photographer say drone come around 11 local time crowd area outskirts capital report casualties char wreckage aircraft carry houthis aboard toyota pickup truck bahrain-based u.s. fifth fleet immediately respond request comment 10,000 people kill yemen civil war begin march 2015 houthis advance hadi interim headquarter southern port city aden force flee country seek saudi help war cause humanitarian disaster country two million people displace around 750,000 suspect infect cholera yemen houthis say shoot u.s. surveillance drone state news agency