Kentucky tornadoes: up to 100 feared dead in historic US storms

Dozens remain unaccounted for after tornado leaves trail of destruction from Arkansas to Kentucky

Dozens remained unaccounted for on Sunday as rescuers worked overnight searching for survivors after what could be the longest tornado in US history left a trail of destruction from Arkansas to Kentucky, part of a vast storm front that it is feared may have killed at least 100 people.

Kentucky governor Andy Beshear said the path of devastation was about 227 miles (365km) long, which, if confirmed, would surpass the 218-mile Tri-State tornado in 1925, which killed at least 695 people and destroyed 15,000 homes across Missouri, Illinois and Indiana.