SIOUX FALLS, S.D. (KELO) - At 12:45 a.m. Saturday, emergency responders were dispatched to a reported semi-tractor fire on the southbound I-29 on-ramp at mile marker 140. A news release from the Brookings County Sheriff's Office says arriving responders found the tractor fully engulfed in flames hal fway down the exit ramp. The ramp was closed [...] ...read more read less