MINNEAPOLIS (WCCO) — Iowa officials say two people killed in a helicopter crash Monday afternoon held Minnesota addresses.

According to the Gutherie County Sheriff’s Office, a witness in rural Audubon County reported they heard a loud sound and saw a helicopter crashing.

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Emergency responders were dispatched and, upon arrival, found the helicopter surrounded by fire due to a power line that had been taken down in the crash.

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Two people were killed in the crash. Their names are being withheld until family is notified. However, authorities did say they both held Minnesota addresses.

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The investigation into the crash continues.