Massive tornado rips through Oklahoma City suburbs
The BBC's David Willis says some reports suggest the tornado was two miles wide
A gigantic tornado has ripped through a suburb of Oklahoma City, destroying a school, sparking fires and flattening homes across whole neighbourhoods.
The "mile-wide" storm came on the second day in a row that twisters hit the Midwestern state of Oklahoma.
Rescuers are searching for survivors as scores of primary school children are believed to be trapped under debris.
On Sunday, at least two people died and 21 more were injured by the tornadoes that also razed a mobile home park.
The twister struck about 16:00 local time (22:00 BST) on Monday in Moore, Oklahoma, a suburb of about 55,000 people just south of Oklahoma City.
'Long recovery'
Early in the evening, children were being pulled alive from the wreckage of Plaza Towers Elementary School there.
The tornado generated winds of up to 200mph (321km/h)
There have been no reports of children injured or killed.
Volunteers and rescue workers could be seen picking through the rubble in aerial news footage, which shows that along entire streets houses have been levelled to their foundations.
The National Weather Service (NWS) said Monday's tornado generated winds of up to 200mph (321km/h).
"It's going to take a while to recover from something like this," Oklahoma Congressman Tom Cole told CNN.
The storm has been given a preliminary classification of EF-4 on the enhanced Fujita scale.
The town of Moore was hit by a severe tornado in May 1999, which had the highest winds ever recorded on earth.
