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Deadly crash on Interstate 90

ALEXANDRIA, S.D. -- A Humboldt, S.D., woman died in a four-vehicle crash Wednesday on an icy and foggy stretch of Interstate 90 about four miles east of Alexandria.

Krista Lynn Serrao, 37, of Humboldt, died at the scene.

The crash happened shortly before 8:30 a.m. as westbound vehicles followed a 2006 Sterling snowplow driven by Kevin Wayne Tietz, 41, of Mitchell. The South Dakota Department of Transportation plow was traveling about 15 mph as it spread a salt product. Visibility was limited by fog to 100 to 200 feet.

A 2011 Chevrolet pickup pulling a camper trailer and driven by David E. Schaefer, 62, of New Paris, Ohio, traveling about 60 mph, struck the rear of the snowplow. The vehicle and camper spun sideways and covered much of the driving surface.

A 2005 Pontiac Bonneville driven by Serrao was traveling behind the pickup and camper. It is believed the Pontiac collided with the camper and spun into the path of a following vehicle. That vehicle, a 2011 Kenworth semi-truck driven by Byron Roger Behm, 65, of Bellevue, Neb., struck the Pontiac.

None of the other drivers was injured, and no citations were immediately issued. All drivers were wearing seat belts.

Poor visibility, icy road conditions, speed and following too closely were considered to be contributing factors.

"They were all driving too close and too fast," said Sgt. Robert Mayer, supervisor at the Mitchell South Dakota Highway Patrol station. "Once the first crash happened, then it was just a chain reaction."

The snowplow and semi-truck were driven from the scene. The pickup, camper and car were all towed.

The South Dakota Highway Patrol is investigating. The Hanson County Sheriff's Office, McCook County Sheriff's Office and Hanson County Emergency Management assisted at the scene.

The Daily Republic in Mitchell, S.D., is owned by Forum Communications Co., which also owns the Daily Globe.