A One Direction concert last Sunday (April 27) at Lima's Estadio Nacional in Peru caused 47 young fans to be treated for symptoms of asphyxia.
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Asphyxia is a potentially life-threatening condition caused by a lack of oxygen or excess of carbon dioxide to the body. Although tents had to be used as emergency treatment centers at the venue, no serious injuries or fatalities were reported.
The dangerous conditions commenced after concert doors were opened and fans rushed to get as close as possible to the stage in the 40,000-capacity stadium. Throughout the performance fans continued to push, with band members pleading with them to stop.
“If you don’t want anyone to take us off the stage, make sure you stay back,” the group's Niall Horan warned.
The concert continued and ended as planned, complete with 19 songs and four encores, according to Sky News.
The show was the second of 69 in One Direction's Where We Are world tour. Thursday night (May 1) the South American leg continues with a date in Santiago, Chile. The band will then tour Europe before returning to North America on Aug. 1 in Toronto, Ontario.