Five people have been killed in the tornado outbreak in the Oklahoma City suburbs, according to the Oklahoma medical examiner's office.
Over 100,000 people are reportedly without power in their homes after the storm caused destruction on a large scale.
Two of the deaths occurred in Union City and one was in El Reno, west of Oklahoma City, according to Reuters.
It has not yet been confirmed where the other two deaths occurred.
More top news
Sleet and snow for some parts of Scotland. Elsewhere in the UK will be cold, cloudy and with some showers.
At least 52 people have been killed after a fight broke out between two rival drugs gangs in a Mexico prison.
Lord Coe has accused Nestle of hypocrisy following its decision to withdraw sponsorship from the IAAF Kids' Athletics Programme.