The search for over two dozen children missing from a girls' summer camp hit by flash floods in Texas entered a third day on Sunday as rescuers faced the threat of more flooding and the death toll in the region reached at least 43.

At least 51 people, including 15 children, were killed, with most of the deaths coming in Kerr County in the state’s Hill Country.

Families of the missing girls have turned to social media, sharing photos and heartfelt messages in hopes of gathering any information.