A Malaysian Airline System Bhd. (MAS) aircraft sits on the tarmac at Kuala Lumpur International Airport (KLIA) in Sepang, Malaysia, on Saturday, March 8, 2014. Malaysian Airline System., said that one of its aircraft with 239 people on board lost contact with the ground while en route to Beijing. A search is under way to locate the plane. Photographer: Goh Seng Chong/Bloomberg via Getty Images