HOSPERS, Iowa | A woman was flown to a Sioux City hospital due to the severity of her injuries after a two-vehicle crash Monday in northwest Iowa.

Four other people were also taken to a hospital after the crash that was reported at 6:38 p.m. Tuesday on 400th Street, five miles west of Hospers.  

The Sioux County Sheriff's Office said Harriet Vander Stoep, 82, of Orange City, Iowa, was driving a Buick LeSabre westbound on 400th Street with three passengers. An investigation determined Vander Stoep crossed the center of the roadway and sideswiped Mathew Ennema, 40, of Sheldon, Iowa, who was driving a Ford F-350 eastbound. Vander Stoep's Buick entered the south ditch, rolled and came to rest on its top back on the roadway, a press release said.  

Vander Stoep was transported to an Orange City hospital and was later flown to Mercy Medical Center -- Sioux City for further treatment. Joan Spronk, 84, a passenger in the Buick, was transported to a Sioux Center hospital for treatment of her injuries. Passengers Evelyn Kroeze, 86, and Eleanor Van Grouw, 78, were transported to an Orange City hospital for treatment of their injuries, the release said. All the passengers in the Buick are from Orange City.

Ennema was also transported to the Orange City hospital for treatment of his injuries.

The accident remains under investigation.

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