Hundreds of rescuers have been deployed to search for survivors in central Texas, after flash floods killed 43 people, including 15 children, BBC reported.

"The work continues, and will continue, until everyone is found," promised Larry Leitha, the sheriff of Kerr County.

As the search goes into a second night, county officials said 27 children remained missing from a Christian youth camp located along the river. 

Some parents confirmed their child's death on social media. About 850 people have been rescued so far.

Multiple flash flood warnings remain in place over the weekend in central Texas, according to BBC.