At least 24 people are dead following extreme flooding that slammed Texas Hill Country overnight on Friday, according to officials. At least 20 girls from a summer camp remain missing.

Heavy rains are unleashing a “catastrophic” and deadly flood of Texas’ Guadalupe River on Friday. People have died in Kerr County in Hill Country and roads are washed out in Kerrville in Hill Country, authorities said.

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.