A weekend deluge in Texas caused catastrophic flash flooding that has killed at least 89 people, with the numbers expected to rise. Following a long Fourth of July weekend which should have been full of joy and fun, Texans are assessing the damage and searching for those who are lost.

Six counties reported deaths from multiple severe flood events since Friday, July 4. Also, Kerrville officials reported that a privately owned drone collided with a helicopter conducting search and rescue operations.

Emergency responders continue to search for missing people and local police said efforts have been slowed by "sightseers who are making things worse."

Flash floods in Texas have killed more than 100 people, many of them children. Heavy rains fell quickly in the predawn hours Friday in the Texas Hill Country.