The harrowing news came on Sunday, following flash floods in the region on yesterday. Officials say dozens of people have been evacuated from the depths of the Grand Canyon because of heavy rain and flooding. Key points and original sources are listed below.

• The harrowing news came on Sunday, following flash floods in the region on yesterday.S1

• Officials say dozens of people have been evacuated from the depths of the Grand Canyon because of heavy rain and flooding.S2

• More than 20 people are unaccounted for in Grand Canyon National Park, and dozens were evacuated after parts of theS3