PHOTO: Murfreesboro Firefighters say a small propane tank exploded underneath the Old Salem Road bridge near the railroad track Wednesday night around 10:42 p.m. The explosion shattered windows at the nearby Clearview Apartments on Old Salem Road. Firefighters quickly arrived to the scene of the explosion and put out a fire. Murfreesboro Police say that they found a homeless person's damaged tent and belongings. CXS trains were put on hold while firefighters investigated the explosion and fire. The scene has since cleared and the tracks are back open.