More than 50 people have died and dozens of children are missing in Texas Hill Country after catastrophic flooding, leaving officials struggling to explain if they had done enough to warn people of the fast-rising waters.

Texas Gov. Greg Abbott visited the all-girls retreat Camp Mystic late Saturday as the death toll from Friday's flash flooding of the Guadalupe River continued to rise through the weekend.

Local officials warned the number of dead will likely rise and were due to give an update on Sunday morning, as search and rescue teams raced to find 27 girls missing from a camp near the Guadalupe River,