FOND DU LAC---No one was injured when the outside of a duplex started on fire.
Officials were called to the 700 block of Grove Street just before 4 a.m. Sunday morning.
The residents were able to get out of the home safely.
Fire Chief Peter O'Leary says "This fire could have been much worse if not for the early notification and the quick response of fire crews".
The cause of the fire doesn't appear to be suspicious, but remains under investigation.