SALT LAKE CITY — An overturned semi and a hazmat spill on westbound Interstate 84 prior to U.S. Highway 89 led officials to close a portion of I-84 on Tuesday afternoon.

For several hours, traffic was backed up between the power plant and the city of Mountain Green along I-84.

A UHP official said the semi had spilled liquid fertilizer, and that there were minor injuries.

Editors note : This article has been updated to reflect the correct county.

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This story is developing and may be updated.

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