The explosion happens in the middle of the Holiday on Ice performance when a propane tank in the concession area ignites and explodes. An estimated 400 people are injured and 74 are killed.
![People are gathered together looking over bodies covered with sheets.](https://indyencyclopedia.org/wp-content/uploads/2023/11/explosion-at-the-indiana-state-fairgrounds-coliseum-0-cropped.jpg)
Revised November 2021
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