EXPLAINER: What's behind Indonesia's deadly soccer match?

A women breaks down after receiving confirmation that her family member is among those killed in a soccer riots, at a hospital in Malang, East Java, Indonesia, Sunday, Oct. 2, 2022. Panic at an Indonesian soccer match Saturday left over 150 people dead, most of whom were trampled to death after police fired tear gas to dispel the riots. (AP Photo/Dicky Bisinglasi)

Violence, tear gas and a deadly crush that erupted following a domestic league soccer match Saturday night marked another tragedy in Indonesian football. Here's a look at how the chaos occurred and what is being done to prevent future incidents:___

HOW DID THE CHAOS OCCUR?