A tipster sent a photo showing smoke flowing from the grate over Metro at Fairfax Drive and N. Utah Street.
According to Metro’s Twitter activity, debris inside a vent shaft began smoldering but there was no fire inside the station. The Arlington County Fire Department confirmed the smoke came from leaves that had ignited in a ventilation grate. Capt. Gregg Karl said that sometimes occurs if a passerby tosses a cigarette through the grates and debris below ignites.