MUNCIE, Ind. — An auto parts store in Muncie caught on fire Thursday morning before 6:00. Muncie firefighters arrived at the auto parts store, which is called AutoZone, on the 2210 block of Dr. Martin Luther King Jr. Boulevard. Firefighters are not sure how the fire started, but it took them hours to put it out, and preliminary estimates of loss are around $3 million. Firefighters say no one was injured, and they are looking into this.