ORLAND, Calif. (AP) — Frantic calls to police from the scene of last week’s deadly crash between a tractor-trailer and tour bus carrying students included one from a dazed student who struggled to put into words what just had happened.

The call was included on 911 recordings released Thursday by the California Highway Patrol as it investigates the cause of the crash that left 10 people dead.

In the call from the student on the bus, shrieks can be heard as the person tries to recount how a Fed-Ex truck barreled across the median of Interstate 5 and hit the bus head on about 100 miles north of Sacramento.

The student manages to escaped the fiery wreck, and the dispatcher says everyone should get as far away from the vehicle as possible.

The bus was carrying 44 Southern California high school students to Humboldt State University on April 10.

Five students died, as did three adult chaperones and the drivers of the truck and chartered bus.

Hear all of the released 911 audio clips here.