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

KERRVILLE, Texas (AP) — At least 24 people were killed and a frantic search continued overnight for many others missing in the Texas Hill Country, including more than 20 from a girls camp, after a storm unleashed nearly a foot of rain and sent floodwaters spilling out of the Guadalupe River.

Authorities stressed that the situation was still developing and that the death toll could change, with rescue operations ongoing.