Photo by RON JEFFERSNorth Hudson firefighters operated at a 3-alarm fire that involved a 2.5-story wood-frame dwelling on the 4500 block of Kennedy Blvd., Union City, on June 30th. The building was the scene of a 2-alarm fire on June 18th, and it was boarded up. Arriving firefighters said there was fire on all three floors. Exposing dwellings on each side, separated by narrow alleyways, were protected from fire extension. The cause of the blaze was under investigation.