President Donald Trump extended a major disaster declaration to more Texas counties ahead of his visit to the flood-ravaged area.

The search is continuing on the grounds of Camp Mystic as more than 160 people are believed to be missing in Texas days after a destructive wall of water killed over 100 people.

At least 109 people are dead after heavy rain led to devastating flooding in Texas.

The Trump administration has supported the disaster response through the Federal Emergency Management Agency, sending funds for disaster recovery, temporary housing and property losses.

The full extent of Texas officials’ readiness is unclear.