Stratford Police say they believe two small fires which occurred over the weekend at the Festival Marketplace were caused intentionally.
A call was received on Sunday about fires in garbage bins behind a mall and was extinguished by a nearby passerby before firefighters were able to arrive.
No injuries were reported and the flames were contained before they could spread further.
Anyone with information is asked to contact Stratford Police at 519-271-4141 or Crime Stoppers.