Authorities investigating what sparked Magna grass fire near I-80

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MAGNA, Utah - Authorities are investigating what sparked a grass fire in Magna Wednesday night.

Fire crews said they had trouble fighting the fire off I-80 near 7200 W. because of the location.

High winds led to flames reaching up to 15 feet high.

Officials said the fire was on uneven ground with lots of ditches and grass about 7 feet tall.