Kentucky tornadoes: fears death toll from record twisters could exceed 100

Dozens unaccounted for amid conflicting reports on survivors as crews search wreckage in deadliest tornado event we've ever had'

The death toll from record tornadoes that roared across hundreds of miles this weekend was feared to exceed 100 in Kentucky alone, with dozens still unaccounted for and conflicting reports on the number of survivors as crews scramble to search wreckage.

One tornado that tore through four states over four hours of nighttime devastation is believed to be the longest distance for a tornado in US history, leaving destruction, death and a frantic search by survivors to find family and shelter, from Arkansas to Kentucky.