One person died and approximately 15 others remained unaccounted for after a significant flash flood tore through Grand Canyon National Park on Saturday afternoon.

The National Park Service reported that the body of a 46-year-old man was recovered Sunday evening near Crystal Rapids along the Colorado River. Officials described the death as flood-related but have not released the man's identity.

The flooding began around 2:30 p.m. local time Saturday after storms swept over Bright Angel Canyon and the Phantom Ranch area. Bright Angel Creek surged, destroying nearly all footbridges, widening the creek bed, and sending boulders, metal structures, and debris into the Colorado River.

As of Sunday morning, at least 62 people had been evacuated from Phantom Ranch, the lower North Kaibab Trail, and nearby sites, with additional evacuations continuing in coordination with the Arizona Department of Public Service. Evacuees were transported to the South Rim, where the American Red Cross provided assistance.

The park service initially estimated up to 20 people missing or unaccounted for before revising the figure to about 15. Those individuals were believed to be on backcountry itineraries in the inner canyon or day hiking in the affected area. Officials asked the public to provide any information about hikers or campers in the region.

The flood also knocked out the park's only water pipeline, prompting stage 4 water restrictions. Overnight accommodations at lodges and hotels within the park were suspended starting Monday, though day use remained available. River traffic on the Colorado River was halted due to debris.

Additional thunderstorms and heavy rain were possible into Monday, raising the risk of further flash flooding, debris flows, and rockfalls. The park closed Phantom Ranch, Bright Angel Campground, the Phantom Ranch canteen and cabins, and the North Kaibab Trail from the trailhead to Phantom Ranch until further notice.

Search and rescue operations continued Monday morning with support from park staff and state agencies. No other injuries have been reported.