A fan lost consciousness near the "Azteca" stadium a few minutes before the opening match between Mexico and SA and died.
Sport.Biz reports that journalist Patrisia Estrada reported on this.
Earlier, a video was released showing doctors performing a heart-lung resuscitation on a man. It was reported that the 40-year-old fan had a heart attack after entering the stadium.
The Mexico - SA match ended 2:0 in favor of the hosts.