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

A week after catastrophic floods tore across the Texas Hill Country, authorities and volunteers on the ground Friday are searching for over 160 missing people as residents in hard-hit areas mourn the dead. While it's not certain that Trump will give a speech, he's scheduled to appear in Kerrville, Texas, at 11:30 a.m. CT.

The president has defended his administration's response to the fatal flooding amid criticism that federal assistance could have been provided more quickly.