Firefighters battled an apartment building fire on Main Street in Hartford Friday morning. According to the IAFF Local 760 firefighters union, the fire was across the street from the Engine 1 Ladder 6 headquarters. The building was a three-story residential apartment building. Crews said the fire was found on the rear porches and was quickly extinguished. An eyewitness sent photos to Channel 3 that showed black smoke rising from the building. No injuries were reported. Firefighters said special services and license inspections officials were on the scene to figure out and coordinate any relocations due to smoke damage. A cause has yet to be determined.