(CENTRALIA, IL) — Two people were injured Monday night in a multi-vehicle crash on Interstate 57 just south of the Centralia exit. Marion County Sheriff’s deputies and Illinois State Police were already on scene with other vehicles that had slid off the roadway, when a series of vehicles started sliding out of control with an SUV and semi-truck ultimately crashing into one another. Deputies had already reported that the interstate was a sheet of ice, when an SUV began spinning on the roadway in front of a semi-truck that subsequently lost control and jackknifed. Those two vehicles came to a stop when they struck each other side-by-side. Two occupants in the SUV were transported to SSM Health St. Mary’s Hospital in Centralia for treatment of injuries. The driver of the semi was uninjured. Kell Fire and EMS, along with LifeStar responded to the scene. The situation was very dangerous, as deputies were out of their vehicles helping other motorists when other vehicles began spinning out of control toward them. Southbound lanes of Interstate 57 were ultimately shut down to allow vehicles to be cleared from the scene so salt trucks with the Illinois Department of Transportation could get through and treat the icy roadway. IDOT reported their trucks were stopped behind traffic at the 109 mile marker and couldn’t access the shoulder to get ahead of the stopped traffic.