Dozens of people are dead in Central Texas in what officials called a "mass casualty event" after devastating flash floods slammed Hill Country, with water rescues taking place along the Guadalupe River.

Greg Abbott said emergency responders remained in a search and rescue posture, hours after the flooding along the Guadalupe River inundated nearby areas."So many people have been swept up into an extraordinary catastrophe,

At least 24 people were dead and many missing after torrential rains unleashed flash floods along the Guadalupe River in Texas.