Severe weather in Oklahoma has left four people dead, including a 12-year-old boy and his mother, officials say.

A slow-moving, active storm system brought heavy rain, large hail and tornadoes to parts of Texas and Oklahoma and left three people dead as severe weather warnings Sunday continue to threaten parts of the south-central and Midwest U.

A slow-moving, active storm system has brought heavy rain, large hail and tornadoes to parts of Texas and Oklahoma and left three people dead