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.

Police say they were able to rescue some people, but a woman and 12-year-old boy were found dead. Large swaths of Oklahoma remain under a National Weather Service flood watch through Sunday, along with parts of Missouri,

Flash floods led to two deaths in Moore, Oklahoma as severe storms hit parts of that state and Texas Saturday night. The storm system also spawned multiple tornado reports across both states.