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O’Fallon woman killed in rush-hour traffic crash on I-255

Illinois State Police are investigating a fatal crash on southbound Interstate-255 near Cahokia Heights Tuesday morning.

Police said early Tuesday that the crash occurred around 5:35 a.m., involved two vehicles and that there was a fatality.

St. Clair County Coroner Calvin Dye Sr. identified the victim as Charmane Gallant, 69, of the 1200 block of Greenfield Place in O’Fallon. Dye said she was pronounced dead at 6:45 a.m.

I-255 was barricaded near milepost 12 as of 8:30 a.m. Traffic was being rerouted to Illinois 157 and Illinois 3 as the scene was being processed.

“This crash investigation is still in its infancy and there is no further information available at this time. If more information becomes available,” according to an emailed statement from state police.

More information will be provided as it is available.