Approximately 15 people may be missing after a sudden flood. Decenas of people have been evacuated. The flood occurred at Bright Angel Canyon and the Phantom Ranch area.

The US National Park Service initially estimated that 20 people were missing or unaccounted for, but this was a preliminary figure. By Sunday, at least 62 people had been evacuated.

Further details about the flood and evacuation efforts are available from the National Park Service and other sources.