Search teams plodded through mud-laden riverbanks and flew aircraft over the flood-stricken landscape of central Texas for a fourth day on Monday, looking for dozens of people still missing from a disaster that has claimed at least 78 lives.

Authorities said at least 24 people have died in flooding around Kerr County, Texas, and officials are still performing water rescues.

At least 80 people are dead and many more are missing in Texas in the wake of torrential rains and resulting flooding. By far the greatest number of fatalities occurred in Kerr County, where 68 people are believed to be dead,