Oklahoma tornado: TV station evacuated live on air
21 May 2013 Last updated at 16:01 BST
At least 24 people are confirmed dead, including seven children, and many are missing after a tornado tore through Oklahoma City, US officials say.
Tornadoes, hail and high winds also hit Iowa and Kansas, with part of a storm system stretching from Texas to Minnesota.
KSN TV, based in neighbouring Wichita, Kansas, evacuated their studio live on air on Sunday during an update.
High winds can be heard during JD Rudd's report, before he and members of staff abandon the set.
Courtesy KSN TV