20 people at Texas summer camp missing as devastating floods slam hill country, officials say

Fatalities were reported Friday as devastating floods slammed Texas' hill country with water rescues taking place along the Guadalupe River, officials said. 

"Within 45 minutes, the Guadalupe River rose 26 feet and it was a destructive flood -- taking property and sadly lives, " Lt. Gov. Dan Patrick said at a news conference in the afternoon.

He addressed parents of children at Camp Mystic, where there were 700 children at summer camp when the floods hit. The lieutenant governor, who is acting as governor while Gov. Greg Abbot is on vacation, said 20 people were unaccounted for on Friday. He said they are praying for all those missing "to be found alive," Patrick said.