Media playback is unsupported on your device

Rescuers find tornado survivor by text message

Rescuers have been sifting through debris and tangled wreckage in Missouri as they try to find more survivors after the worst tornado in America for almost 60 years.

At least 116 people were killed in the town of Joplin after it was hit by winds of up to 198 miles per hour.

Adam Mynott reports.