Bolivian police have detained the head of the airline whose plane crashed in Colombia killing 71 people including many players and staff from a top Brazilian football team.
The focus of investigations appears to be whether the disaster was a result of negligence with the short-range LaMia aircraft attempting a more than four-hour flight from Santa Cruz to Medellin while having barely enough fuel.
The plane came down in the mountains inc Columbia when the pilots were asked to carry out a holding pattern while another plane also declaring an emergency came in to land. Only six of the 77 people on board survived the crash.
One of the six survivors of the crash said he had been reassured by the airline before take-off that the plane would make a refueling stop in Bolivia. Authorities are also looking into the circumstances through which the airline was granted permission to fly earlier this year.