Texas Lieutenant Governor Dan Patrick said authorities were searching for 23 girls listed as unaccounted for among more than 700 children who were at a summer camp when it was swept by floodwaters.

The death toll from devastating floods in the Texas Hill Country rose to 24 Friday night, officials said, as a the search for more than 20 people missing from a girls summer camp continued through the night.

Local and state law enforcement in Kerr County were working to rescue and evacuate residents Friday as a flash flooding emergency led to dozens of fatalities. At least 20 girls were reported missing from a summer camp in the area,