Flash floods in the Grand Canyon have claimed the lives of two hikers, and authorities continue to search for a third missing individual. The missing hiker was reportedly in the lower rim area when the floods occurred. Rescue crews are deploying additional resources in the challenging terrain to locate the unaccounted-for hiker. Beyond the human cost, the floods have caused significant infrastructural damage, notably to the canyon’s water pipe system. Officials are currently assessing the full extent of the damage. NBC News correspondent Dana Griffin is reporting on the ongoing situation. The search efforts are ongoing, but hampered by the scale of the flooding and the rugged canyon landscape.