A suspected fire bug was at work in the Bowen Road and Harewood areas early Tuesday morning.
Fire crews responded to four small fires in the area, starting with a burning traffic cone on Bowen Road near Bowen Park at about 3 a.m.
The second fire was a burning portable toilet about an hour later in the Third Street area.
Rick Kwasnecha, fire investigator with Nanaimo Fire Rescue, said at this point, firefighters notified police that two arson fires had occurred.
But the incidents didn't stop there – at 4:30 a.m. crews put out a dumpster fire in an apartment complex on Sixth Street and at about 5 a.m., some rubbish was lit on fire on Howard Avenue.
Kwasnecha said fire officials suspect it was the same person or group of people responsible for all four incidents.