Search for US tornado survivors

The BBC's Alastair Leithead reports on the "vast, post-apocalyptic" landscape left behind

Emergency workers in the US are continuing to search for survivors of the gigantic tornado that tore through a suburb of Oklahoma City on Monday. 

Rescuers worked through the night and into the morning in the rubble in Moore, the worst-hit area.
Entire neighbourhoods were flattened by winds of up to 200mph (320km/h).

At least 24 people were confirmed dead, including nine children, the chief medical examiner said. Earlier, officials said 51 were confirmed dead.

"We have got good news. The number right now is 24," Amy Elliott, chief administrative officer at the Oklahoma Office of the Chief Medical Examiner, told reporters.

"The prior figure of 51 dead may have included some double-reported casualties."

At one point, as many as 91 people were feared dead.