A tornado caused severe damage in the town of Enterprise, Alabama.

The local high school was hit, burying students under debris.

Workers looked urgently for students and staff trapped under the rubble of Enterprise High School.

Local residents were powerless to do anything except watch the destruction.

Ambulance staff treated the wounded outside the school.

Military helicopters were used to take some of the wounded to hospital.

Rescuers worked through the night looking for anyone trapped in the wreckage.

The force of the storm lifted cars in the school's parking lot.

Residents, whose houses had suffered damage, tried to salvage what they could.