A teacher’s cell phone captured the moment a gigantic tornado ripped through Briarwood Elementary School in Moore, Okla., reports ABC’s Nightline.

Robin Dziedzic, a fifth-grade teacher, gathered in a darkened bathroom with about 25 girls and several teachers as the E-F5 touched down on the campus, she said.

“Oh, my God, I hate this! I hate this!” a student yells, to which Dziedzic can be heard replying, “It’s almost over. It’s almost over. Oh, my God.”

New Video Surfaces of the Moment Oklahoma Tornado Hit Elementary School

Screen capture from second video. (Credit: Nightline)

More from Nightline:

After the tornado passed, teachers and students emerged to survey the devastation and see what was left of their school a few days before their summer vacation was set to begin.

The teachers and students at Briarwood were considered fortunate when compared to Plaza Towers Elementary School, where seven children were killed, according to the medical examiner’s office. The cause of death for six of the seven children was “asphyxia” because they were smothered by falling debris, the medical examiner’s office said Wednesday in a report.

New Video Surfaces of the Moment Oklahoma Tornado Hit Elementary School

Screen shot from second video. (Credit: Nightline)

Authorities released the names of 23 of the 24 people confirmed dead, reports say, ranging in age from 4 months to 65. Gov. Mary Fallin’s office said Wednesday evening that everyone has been accounted for and a total of 353 people sustained injures from the twister.

Here’s the video and accompanying report:

This report shows alternate footage of the same video (including clear images inside the bathroom):