EXPLAINER - Indonesia football stadium tragedy: What happened, death toll, and reaction

The incident in East Java province has sparked outrage and grief in Indonesia, where sports commentators and activists have slammed what they see as an excessive use of force by police, and authorities have pledged to investigate. Questions are being asked about locked gates at the stadium, which was packed well over capacity, and about holding a match that local football experts had identified as 'high risk' due to the bitter rivalry between the two teams. WHAT HAPPENED AT THE MATCH?The match between the home team Arema FC and Persebaya Surabaya ended with the former losing 3-2, a huge upset given that Arema had not lost a home game to Persebaya in 23 years, according to police and a local soccer expert. The outcome angered many in the crowd, which consisted almost entirely of Arema supporters after the police had banned Persebaya supporters from attending for fear of violent clashes.

Read AlsoIndonesia orders punishment for football stadium disaster 'perpetrators'

Indonesia's government called on the country's police Monday to identify and punish whoever was responsible for a stadium stampede that left 125 people dead, as anger mounted over one of the deadliest disasters in the history of football.

Agitated Arema FC fans streamed onto the pitch after the match to vent their frustration, prompting clashes with police, who fired tear gas to try and disperse them. The tear gas sent waves of panic through the crowds, with many caught up in a deadly crush as they tried to escape. Authorities say 125 people were killed, including 32 minors. WHY WAS THE DEATH TOLL SO HIGH?The severity of the stadium disaster was due to a confluence of factors, including a venue packed beyond capacity, poor safety planning, and a lack of