A referee’s call in a soccer match between Peru and Argentina sparks a riot on May 24, 1964. More than 300 fans were killed and another 500 people were injured in the violent melee that followed at National Stadium in Lima, Peru.

The match was a qualifier for the 1964 Olympics and the Peruvian fans were fiercely cheering on their team with only a few minutes left in a close game. When the referee disallowed an apparent goal for Peru, the stadium went wild. The resulting panic and crowd-control measures taken caused stampedes in which people were crushed and killed.

The extent of this disaster has only been surpassed once. In 1982, 340 people died at a match in Moscow when a late goal caused fans who had exited the game to attempt to return suddenly. Meanwhile, police were forcing people to exit; those caught in the middle were crushed.

Large-scale soccer disasters date back to 1946 when 33 fans were crushed to death in Bolton, England, when overcrowded conditions caused a barrier to collapse onto fans.