Authorities in Chattagnooga, Tennessee, have confirmed at least six children died when their school bus crashed into a tree.
Nearly two dozen others were treated in hospital for their injuries.
The children ranged from kindergarten up to fifth grade, which would make their ages roughly between five and 10.
The 24-year-old driver's in custody and faces charges of vehicular homicide, reckless endangerment and reckless driving.
