A third arson investigation is underway in Vidalia after an abandoned home was set on fire Thursday in broad daylight. Three weeks ago, two other abandoned homes were set on fire. Fire officials say these fires are all within about nine blocks of each other. Now they’re asking for the community’s help to catch who is responsible. Fire Chief Brian Sikes says it only took about 15 to 20 minutes of being on the scene to determine this was an arson fire. Chief Sikes says the house on Vann Street sat abandoned for more than 10 years and now it’s a total loss. The roof is missing and what was inside is now a pile of ashes. The fire started just past noon and Sikes says it took about three hours to put it out. Folks who live in the neighborhood say they’ve seen homeless people around the home and living in it, but Sikes says no one saw who started the fire.