Mystery audio message from plane that crashed 'killing all 38 on board'
On Monday a Hercules C-130 took off from Chabunco in the south of Chile and flew towards the Antarctic Chilean base Presidente Eduardo Frei Montalva.
Just over halfway into the 745mile trip the plane lost contact with operators.
Now Chilean authorities are investigating an audio message sent by one of the crew members who said the aircraft was suffering "an electrical failure" and that the "itinerary should be followed until landing in the white continent".