A 20th body was found Monday from last week's flash flood at an Arkansas campground, and a search for more possible victims was continuing, officials said.
The body, which was found in a river, had not been identified, said Michael Fletcher of the Arkansas State Police.
"We're still in the process of making a recovery and getting it out of there," he said.
Authorities have increased to 12 the number of canine units that were searching piles of debris for more bodies, said Mike Quesinberry, the head of the rescue effort for the U.S. Forest Service. "Hopefully, there's no one else left," he said.