As many as 50 students fell through a stage Thursday night at Westfield High School, north of Indianapolis.
Scroll down to the watch the video in the Twitter post.
Although the person who posted video of the stage collapse said there were not serious injuries, Fire Department chief Joe Lyons told IndyStar.com there were "some seriously injured people" but did not give details.
Westfield police said one person was critically injured and five were seriously injured, according to WTHR.com.
The students were performing “American Pie,” a rock concert at the time of the stage collapse.
A Twitter user posted video of the shocking stage collapse.
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