CHICAGO (STMW) — A person was killed when a van slammed into a viaduct on the South Side late Sunday.

The crash happened at 11:43 p.m. Sunday in the 7500 block of South South Chicago Avenue, police said.

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A male, whose age was not immediately known, was found unresponsive after his vehicle crashed into a viaduct at that location, police said.

The male was dead on the scene, according to the Cook County Medical Examiner’s office, which was unable to make an identification Monday afternoon.

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An autopsy on Monday found the person died of multiple injuries from a van striking a fixed object and his death was ruled an accident, the medical examiner’s office said.

The police Major Accident Investigation Unit is investigating the cause of the crash.

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