Multiple fatalities have been confirmed and frantic water rescues and searches were underway Friday as a "catastrophic" flooding emergency unfolded.

The authorities confirmed that people had died as a result of the flooding along the Guadalupe River, and urged those living near the river to seek higher ground immediately.

Some parents were notified on Friday that their daughters at Camp Mystic, an all-girls Christian summer camp, had gone missing after devastating flash floods tore through south-central Texas.