In Nepal, an investigation is underway into the cause of a Yeti Airlines crash on Sunday that appears to have killed all 72 people on board. It was Nepal’s deadliest air disaster in more than three decades. The plane had been traveling from the capital Kathmandu to Nepal’s second-largest city, Pokhara, when it began rolling from side to side before crashing into a gorge and catching fire. Investigators were able to recover the plane’s cockpit voice recorder and flight data recorder on Monday.