A firefighter appears to have called for emergency alerts at least an hour before the first warnings were received.

Over 120 people have died after heavy rain pounded Kerr County, Texas, early Friday, leading to "catastrophic" flooding, the sheriff said.

Nearly a week after deadly floods struck Central Texas, search and rescue teams are continuing to probe debris for those still missing.

U.S. President Donald Trump is heading to central Texas on Friday to survey damage from the July 4 flash flood that killed at least 120 people and left dozens more missing. His visit comes amid intense focus on the government response a week after the storm and as thousands of first responders comb through muddy debris,

There are questions over why oversight was eased at Mystic Camp as it expanded in a hazardous floodplain, the AP reported.

Camp Mystic owners successfully appealed to the Federal Emergency Management Agency to redesignate some buildings that had been considered part of a flood-hazard zone.

Coast Guard Lieutenant Blair Oguiofor was one of more than 1,700 emergency responders who headed to central Texas.