Danger still looms in north central Arizona after flash flooding in the Grand Canyon area. The situation required a rescue operation early Sunday when hundreds of lives were threatened.

Helicopters were called in to carry out tourists and residents near Supai when the Redland Dam broke. The earthen dam gave way after heavy rains overnight flooded part of the Colorado River that runs through the canyon.

The people who were evacuated were taken to nearby Peach Springs, where a Red Cross shelter had been opened at the Hualapai Tribal Gymnasium.

The affected area is in north central Arizona’s Coconino County north of Flagstaff. The Havasupai Indian Reservation is located in the area, where 400 members of the tribe live.

The National Weather Service reported flood waters were likely moving down Red Lake Wash, Monument Wash, and upper Cataract Creek. A flood warning remains in place for the area around Supai, and more rain is in the forecast.

Grand Canyon National Park spokeswoman Maureen Oltrogge told Arizona television station KYMA that Supai is not under water, and that some campers and river runners in the canyon were evacuated by seven helicopters.

No injuries have been reported.

Map Courtesy: National Weather Service, Phoenix