Video captured from the scene shows the size of the tornado and the storm gathering momentum as it heads towards Oklahoma City.
More top news
Low pressure remaining in control gives more unsettled weather for the UK this weekend.
Charlie Gard, the baby boy whose fight for life captured the attention of the world has died, his family has confirmed.
A Royal Marine who lived a "dangerous double life" as a terrorist bomb-maker claims he faked Irish Republican sympathies out of fear.