Westbound I-84 is closed between Northside Boulevard and Karcher/Midland while crews work to clear an accident and fuel spill on the interstate.Traffic is being diverted off at Northside Northside Boulevard. Drivers will be able to return to I-84 at Karcher/Midland.Eastbound traffic is not impacted.Police say to avoid the area and expect delays. No estimated reopen time was given.