Twenty five years ago, during a semi-final game of the FA Cup between Liverpool and Nottingham Forest football clubs at Hillsborough Stadium in Sheffield, the police opened an exit gate which led to an already overcrowded sector of the stadium. This resulted in a stampede in which 96 people were killed and 766 were injured.
It became the worst tragedy in the history of English football.

The worst tragedies happening at football stadiums in this photo gallery by ITAR-TASS.