Xavier Ramirez's family had been at a campground in Kerr County when the waters of the Guadalupe River began to quickly rise.

At least 43 people have died and dozens of children are missing in the Texas Hill Country after catastrophic flooding, with officials warning the casualty count will climb as forecasts call for more rain and the risk of further flash floods in the coming days.

Rescuers scoured flooded riverbanks littered with mangled trees Saturday and turned over rocks in the search for more than two dozen children from a girls' camp and many others missing after a wall of water blasted down a river in the Texas Hill Country.