Search efforts continue for a fourth day as a girls' summer camp confirms 27 children and staff are dead, with 10 campers and one counsellor unaccounted for.

Search teams are using helicopters, boats and drones to look for victims in flash floods that have torn across central Texas since the at the start of the July Fourth weekend. More than 80 people

The death toll from sudden floods in the Texas Hill Country rose to 24 Friday night, officials said, as the search for more than 20 people missing from a girls summer camp continued through the night.