Also: San Antonio mourned the victims in a Travis Park vigil; UTSA said one of its teachers died in the Guadalupe River flood; Kerrville officials said a privately owned drone collided with a helicopter conducting search and rescue operations.

The Guadalupe River has risen to catastrophic levels in the same area three times in the past century, impacting camps and campers each time.

Nineteen local and state agencies were still combing the Guadalupe River on foot, boat and helicopter and with dogs and drones, Kerrville City Manager Dalton Rice said. He declined to provide an estimate of how many people are still missing,