Scores of rescuers searched for children from a girls’ camp and many others who were still missing after a wall of water rushed down a river in the Texas hill country during a powerful storm that killed at least 27 people, officials said. Among the dead were nine children. The destructive fast-moving waters along the Guadalupe River rose eight metres in just 45 minutes before dawn on Friday, washing away homes and vehicles. The danger was not over as more heavy rains were expected and flash flood warnings and watches remained for parts of central Texas.