The tourists were 21 storeys down and preparing to return above ground when they discovered the lift wasn't working,
Five people had to be hoisted to safety after an elevator at the Grand Canyon Caverns broke down around 64m underground.
The tourist attraction allows people to tour an ancient cave and stay in an underground hotel 120 miles southwest of Grand Canyon National Park in Arizona. A man with the group was able to get out and notify authorities after climbing the emergency staircase to the surface, the release adds.
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