Update at 12:20 p.m.: The interstate has reopened to traffic.
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Interstate 24 westbound is currently shut down in Chattanooga after an 18-wheeler crash at the Highway 27 split, police say.
Police say the crash caused a fuel spill in the roadway. Emergency crews are working to clear the interstate at this time.
Traffic is being diverted down the Market St./Williams St. exit ramp. Drivers are asked to avoid the area and find alternative routes.