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

Flash floods that swept through Texas over the Fourth of July weekend have left more than 100 people dead and dozens of others missing.

Texas Gov. Greg Abbott said his state "will not stop until every missing person is found" following devastating flooding in central Texas over the Fourth of July weekend that left at least 104 dead. Ten young girls and a counselor from Camp Mystic in Hunt remain missing Tuesday.