Seventy-five of the 81 passengers aboard a plane carrying a Brazilian soccer team were killed Tuesday when the aircraft crashed while on its way to the finals of a regional tournament, authorities in Colombia said.

The chartered British Aerospace 146 short-haul plane, operated by LaMia, declared an emergency at 10 p.m. Monday because of an electrical failure, aviation officials said. The plane had departed from Santa Cruz, Bolivia, and was carrying the Chapecoense soccer team to Medellins Jose Maria Cordova airport.

The southern Brazilian squad was set to play Wednesday in the first of a two-game Copa Sudamericana final against Atletico Nacional of Medellin. The tournament features some of the top soccer teams in South America.

“It’s a tragedy of huge proportions,” Medellin Mayor Federico Gutierrez told Blu Radio, later adding: What was supposed to be a celebration has turned into a tragedy.

The soccer club said in a statement posted on Facebook that “may God accompany our athletes, officials, journalists and other guests traveling with our delegation.”

Alfredo Bocanegra, the head of Colombia’s aviation authority, said initial reports suggest the aircraft was suffering electrical problems although investigators were also looking into an account from one of the survivors that the plane had run out of fuel about 5 minutes from its expected landing at Jose Maria Cordova airport outside Medellin.

A video published on the team’s Facebook page showed the team readying for the flight earlier Monday in Sao Paulo’s Guarulhos international airport. It wasn’t immediately clear if the team switched planes in Bolivia or just made a stopover with the same plane.

Brazil as well as South America’s soccer federation extended its condolences to the entire Chapecoense community and said its president, Alejandro Dominguez, was on his way to Medellin. All soccer activities were suspended until further notice, the organization said in a statement.

Elkin Ospina, mayor of La Ceja, near where the crash took place, said rescuers working through the night had been heartened after pulling three passengers alive from the wreckage.

Authorities and rescuers were immediately activated but an air force helicopter had to turn back because of low visibility. Heavy rainfall complicated the nighttime search, and authorities urged journalists to stay off the roads so ambulances and other rescuers could reach the site.

More on this…