On a sunny spring afternoon in 1989, a crush developed at the Hillsborough stadium in Sheffield resulting in the deaths of 96 Liverpool fans attending the club's FA Cup semi-final against Nottingham Forest.
It remains the UK's worst sporting disaster. Since then, many families and survivors have led a 30-year campaign to discover how and why they died. Here are some of the key events.
- 15 April 1989: Fans gather at Sheffield Wednesday's football ground amid a "carnival atmosphere". The mood is described as "boisterous" but jovial. As kick-off approaches, a large crowd builds up outside the Leppings Lane turnstiles.