At least 119 people have been killed and more than 170 are still missing after catastrophic flash flooding swept through central Texas. Officials fear that the death toll could soar as search and rescue efforts entered their sixth day Wednesday,

Over 35,000 signed a petition urging Kerr County to install flood warning sirens after flash flooding killed at least 100 people on July 4.

The event was held as search crews and volunteers continued to scour miles along the Guadalupe River for the people still missing.

Officials have reported that 27 campers and counselors from Camp Mystic died in the devastating floods, with five campers and a counselor still missing.

When the precipitation intensified in the early morning hours Friday, many people failed to receive or respond to flood warnings at riverside campsites known to be in the floodplain.

More than 100 people have been confirmed dead since July 4, when the Guadalupe River in central Texas swelled overnight and triggered flash floods that swept through an area known locally as “Flash Flood Alley.

New before and after satellite images show the massive destruction left behind from catastrophic flooding in central Texas.