At least 70 people have died and many children are missing in the Texas Hill Country after catastrophic flooding that left officials struggling to explain whether they did enough to warn people of the fast-rising waters.

At least 70 people, including at least 21 children, have died as a result of flash flooding in Texas after the Guadalupe River north of San Antonio flowed over its banks. The search for victims intensified June 6, as 11 children and a camp counselor remain missing from Camp Mystic, a Christian girls' camp at the river's edge.

Kerr County Sheriff Larry Leitha said 11 campers and a camp counselor are still missing after powerful floods inundated central Texas.