‘Heaven help us’: One dead and 15 missing after flash flood in Grand Canyon—with more flooding forecast

State and federal officials ramped up efforts Monday to locate around 15 people who are missing after a major flash flood swept through in the Grand Canyon , killing at least one person.

Weather forecasters warned rain and thunderstorms could bring more flooding to the popular tourist attraction from where scores of visitors were evacuated following the flood Saturday in Bright Angel Creek.

The deluge also destroyed the only water pipeline in the canyon, leading to emergency water restrictions for year-round residents.

Tourists have been barred from staying at lodges and hotels inside the park.

Visiting the Grand Canyon — a crown jewel of the national park system — can be particularly dangerous in the summer because of the risk of flash flooding that accompanies the monsoon, or rainy season .

Clear days can give way quickly to thunderstorms and downpours.

“With deep monsoonal moisture in place and already saturated soils in some locations, an elevated risk of flash flooding will be in place through Monday,” the National Weather Service said Monday.

The body of a 46-year-old man was recovered Sunday evening near Crystal Rapids along the Colorado River, the National Park Service said without providing details.

More than 60 people were airlifted from the depths of the canyon.

The park service asked anyone with details about hikers or campers still unaccounted for to provide information.

The Arizona Department of Public Safety helped with evacuations Sunday.

“My heart is with the families and loved ones of every person unaccounted for after the flash flooding at the Grand Canyon,” Arizona Gov.

Katie Hobbs posted Sunday.

The state Department of Emergency and Military Affairs was coordinating with the park service and county emergency management officials in search and recovery efforts, Hobbs said.