The pilot of a plane that crashed late Monday while flying members of a Brazilian soccer team to a competition in Colombia pleaded to make an immediate landing because the aircraft was out of fuel, according to a recording leaked to Colombian news outlets on Wednesday.

The audio, first posted by W Radio of Colombia, offers a grim narration of the final moments of the doomed flight, which carried 77 people, including the members of the Chapecoense soccer team from Chapecó, Brazil. And it added a new twist to the investigation of what might have caused the crash, originally thought to be electrical failure.

“We ask for permission to approach, we have a fuel problem,” cried a voice that the radio station identified as the pilot. He later says that the plane had a “fuel emergency.”

During the 12-minute recording, the pilot also says that the plane had experienced “total electrical failure” and repeatedly requests flight vectors, indications from the air traffic controller, on how to land. The controller tries to help but mentions other obstacles like another plane flying close by and fuel on the runway left from yet another aircraft.