Published Monday, September 28, 2020 6:13AM EDT
Last Updated Monday, September 28, 2020 8:04AM EDT
Starting at 3:45 a.m., residents near the area reported hearing explosions and seeing fireballs in the area of Langstaff Road East and Cedar Avenue.
The fires struck a paving company, a roofing company, a car carrier firm and a scrap yard.
All flames were quickly put out, he said.
Residents of several nearby homes were evacuated and placed on a York Regional Transit bus.
Paramedics were sent to the scene but said they did not treat anyone.