Murfreesboro fire investigators now believe a SUV fire that spread to an apartment complex early Monday morning was intentionally set. The fire happened at University Commons on Old Lascassas Road at about 2:30a.m. According to fire officials, the Chevy Traverse had been parked in the lot for at least 12 hours and it wasn't on when the fire started. Firefighters said when they arrived, flames were shooting as high as the second story of the apartment building. Dozens of people evacuated the building as flames spread. Thankfully, fire investigators said only the exterior of the building was damaged and people were allowed back into their homes. No one was injured. The Fire Marshal's Office determined the SUV was intentionally set on fire. Investigators are asking the for the public's help to solve the case. Call Rutherford County Crime Stoppers at (615) 893-STOP to leave an anonymous tip. You could be eligible for a cash reward for information that leads to an arrest.