A flash flood in the Texas Hill Country on the Fourth of July killed dozen of people, including 27 people at an all-girls summer camp along the Guadalupe River.

Zoom in: If kids have not brought the subject up, parents should consider opening the line of communication, Ana Ugueto of Texas Children's Hospital said in a Facebook Live video. It's important to use simple, straightforward language and speak calmly, Ugueto said.

Camp Mystic, a Christian girls' camp, reported that they lost 27 campers and counselors in the devastating floods, with 11 still missing. Several of the victims were from the Houston area.