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    What remains disputed or unverified

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    It is still unclear how many people were caught by an unexpected series of flash floods that struck the Grand Canyon National Park in Arizona the previous day. More than 15 people may be missing, according to the National Park Service, which said the rain‑water surged through the Bright Angel Canyon and Phantom Ranch area.[1]

    Morning of the Floods

    The floods erupted after the storm system moved across the park on Saturday, saturating the canyon floor and re‑wetting previous rain‑drained channels. The sudden rise in water levels forced authorities to evacuate visitors from the close‑proximity encampments in Bright Angel Canyon and the nearby lodging for hikers, Phantom Ranch.[1]

    Unaccounted Visitors

    Park officials have been conducting rescue operations for the last 24 hours, searching campsites, trailside shelters, and secluded spots where the collapse of the waterlogged terrain could leave stranded hikers or hikers. The agency has not yet confirmed how many people were on the ground when the water rose.[1]

    Ongoing Search

    During the search, rescue teams have disclosed that the flash floods reached depths of several feet and could have shifted large rocks and debris. Emergency responders continue to monitor the canyon and its tributaries for secondary flooding and plan to deploy additional personnel if needed.[1]

    Version and update history
    1. Version 1 · — Initial source-grounded generation