Danville firefighters are investigating a fire they battled Thursday evening. Firefighters were dispatched to 20 South Griffin and found smoke coming from the first and second stories of the building. Firefighters found a fire on the first floor and extinguished it. They performed a search and found a fire on the second floor. They extinguished the fire, removed smoke and checked the rest of the structure. The cause of the fire and the dollar loss are undetermined. The fire department is asking anyone with information about this fire to call (217) 431-2350.