According to Indiana State Police, two people were critically injured and five others were seriously injured. An unknown number of people suffered minor injuries. Several ambulances, from Westfield, Noblesville, Zionsville and Fishers had responded to the scene because not one hospital was able to handle this many patients. An investigation will try to determine why the stage gave way. Westfield High School is a public high school, part of Fairfax County Public Schools, opened in 2000. The building design was provided for a capacity of 2,500 students, a number that was reached in its third year of opening. A new addition was built. Now, there are more than 3,000 students in the school.