President Donald Trump is visiting Texas on Friday to assess catastrophic flooding that has killed at least 120 people.

Several hundred people gathered for a worship ceremony at a high school stadium in Texas on Wednesday evening to remember the at least 120 people who died in the catastrophic flash floods over the July Fourth holiday,

Ex-FEMA officials say it’s unclear how the response differs from FEMA’s typical role in disasters, which is to support states through coordination and funding.

Key questions remain unanswered about the actions Texas officials took both before and during the catastrophic July Fourth holiday floods remain unanswered.

Search crews slogged through thick mud and debris Tuesday in central Texas, where more than 100 people are confirmed dead after catastrophic flooding.

Over 100 bodies have been recovered, but the large number of missing suggested that the full extent of the catastrophe was still unclear five days after the disaster.