WALL, S.D. — A semitrailer crash on Interstate 90 in Pennington County has killed a man.

The Highway Patrol says the semi pulling two trailers went off the roadway into a pasture about 3:30 p.m. Wednesday. The 45-year-old driver was pronounced dead at the scene about 14 miles east of Wall.

Authorities say some diesel fuel from the semi spilled into a creek bed, and an unknown liquid leaked from a hazardous materials container in one of the trailers. A hazardous materials team responded and determined there was no threat.

The name of the victim wasn’t immediately released.

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