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ST. LOUIS COUNTY (KSDK)

- The driver of a semi tractor trailer unit was killed Monday night after running off the road and flipping the rig onto its side.



The crash occurred around 9:15 p.m. on McDonnell Boulevard at Air Cargo Drive just east of Lambert-St. Louis International Airport.



The victim has been identified as 68-year-old Jerry D. Olson of St. Louis.



The preliminary investigation suggests Olson drove off the pavement, with the trailer portion flipping over. An explanation as to what caused the driver to lose control is unknown.

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