A man leaves the headquarters of Spanish private airline company Swiftair, outside Madrid July 24, 2014. An Air Algerie flight en route from Ouagadougou in Burkina Faso to Algiers is missing with 110 passengers on board, almost half of them French citizens, officials said on Thursday. Swiftair, the private Spanish company that owns the aircraft, confirmed it had lost contact with the MD-83 operated by Air Algerie, which it said was carrying 110 passengers and six crew. REUTERS/Andrea Comas