Three fires in the same hour, and neighborhood, have Beloit investigators asking some questions. The first fire, at about 11:30 Wednesday night was a fence in the 800-block of Grant Street. A few minutes later a vehicle was ablaze at 1722 Portland Avenue. The most damage was reportedly from a garage fire at 821 Portland avenue. Assistant Fire Chief Tim Curtis says the garage was fully engulfed in flames when fire fighters arrived a little after midnight. Fire officials aren't calling it arson yet, but they are investigating.