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Belleville, IL (KSDK) - A St Clair County Corrections Officer was killed early Saturday after losing control of his vehicle in the 8100 block of Old St. Louis Road in Belleville.

Investigators say 37 year old Steven Johnson died after his sport utility vehicle left the roadway and drove through a ravine and a median before crossing a separate road where the SUV rolled over and came to rest.

Johnson was thrown from the wreckage and transported to a St. Louis Hospital by air ambulance. He later died of his injuries according to Belleville Police.

The cause of the crash remains under investigation.