Major Incidents | Slideshow

Explosion at Minneapolis School

01 / 07

Building Collapse Minneapolis

Emergency personnel move away as a gas fire continues to burn following an explosion at Minnehaha Academy Wednesday, Aug. 2, 2017, in Minneapolis. Several people are unaccounted for after an explosion and partial building collapse Wednesday at a Minneapolis school, fire officials said. (David Joles/Star Tribune via AP)

02 / 07

Building Collapse Minneapolis

Former Minnehaha Academy employees Elizabeth Van Pilsum, left, and Rick Olson, center, react after an explosion at the school Wednesday, Aug. 2, 2017, in Minneapolis.Several people are unaccounted for after an explosion and partial building collapse Wednesday at the Minneapolis school, fire officials said. (David Joles/Star Tribune via AP)

03 / 07

Building Collapse Minneapolis

Former Minnehaha Academy employees Elizabeth Van Pilsum, center, is comforted by friends Edie Olson, right, and Rick Olson, left, after an explosion at Minnehaha Academy Wednesday, Aug. 2, 2017, in Minneapolis. Several people are unaccounted for after the explosion and partial building collapse Wednesday at the Minneapolis school, fire officials said. (David Joles/Star Tribune via AP)

04 / 07

Building Collapse Minneapolis

A Minneapolis police officer puts up police tape following an explosion at Minnehaha Academy Wednesday, Aug. 2, 2017, in Minneapolis. Several people are unaccounted for after the explosion and partial building collapse Wednesday at the Minneapolis school, fire officials said. (David Joles/Star Tribune via AP)

05 / 07

Building Collapse Minneapolis

Emergency workers respond to an explosion at Minnehaha Academy in Minneapolis Wednesday, Aug. 2, 2017. Assistant Fire Chief Bryan Tyner said it appears the explosion may have been caused by a ruptured gas line, but that the investigation is ongoing. (Aaron Lavinsky/Star Tribune via AP)

06 / 07

Building Collapse Minneapolis

Emergency workers responded to an explosion at Minnehaha Academy Wednesday, Aug. 2, 2017, in Minneapolis. Assistant Fire Chief Bryan Tyner said it appears the explosion may have been caused by a ruptured gas line, but that the investigation is ongoing. (Aaron Lavinsky/Star Tribune via AP)

07 / 07

School Explosion

People hug each other near the Minnehaha Academy after an explosion and building collapse at the school in Minneapolis, Minn., on Wednesday, Aug. 2, 2017. The private Christian college prep school serves students from pre-kindergarten through 12th grade. (David Joles/Star Tribune via AP)