Victor Hugo Hurtado fainted and collapsed in the 47th minute during the game at the El Alto Municipal Stadium, where he was taking charge of a match between Always Ready and Oriente Petrolero in the Bolivian Premier League.
The 31-year-old had a heart attack on the field and then a second, fatal attack as he arrived at the hospital, which was confirmed by Always Ready team doctor Eric Kosziner.
At a huge 3,900m (12,795ft) above sea level, the ground is the highest professional football stadium in the world.
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