Volunteers combing through debris piles from the devastating Central Texas flooding had to sniff out decaying bodies in the “chaotic” initial days of the search-and-rescue efforts.

Follow for live updates in the Texas flooding as the death toll rises to 120, as rescue operations start to shift to recovery phase

NASA’s high-altitude WB-57 aircraft took off from Ellington Field Joint Reserve Base in Houston on Tuesday, and will conduct aerial surveys using its DyNAMITE (Day/Night Airborne Motion Imager for Terrestrial Environments) sensor.

ABC News Chief National Correspondent Matt Gutman is at one location along the Guadalupe River where officials are performing rescue and recovery missions.

Mexican firefighters trained in search and rescue have joined the efforts to find the victims of the tragic flooding in the battered Texas Hill Country.

The Indiana Task Force 1 was deployed on July 8 to assist in search and rescue operations in Kerr County, Texas.

Miller County Office of Emergency Management Director Travis Loehr was at a command center on the Guadalupe River Tuesday when he received a grim text message from a volunteer.