MINNEAPOLIS (WCCO) — A portion of northbound Interstate 35 is shut down after a crash that involved multiple cars and semi trucks.

The crash happened about one mile north of Highway 14, south of Owatonna, Thursday morning.

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Minnesota Department of Transportation traffic cameras showed traffic completely cut off on the stretch.

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The Minnesota State Patrol said that the crash involved 20 passenger vehicles and six semi trucks.

A detour has been put into place while crews work to clear the lanes. As of 1 p.m., the State Patrol reported that the stretch had reopened.

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No serious injuries were reported on the scene, only minor ones.