Several businesses in Cambridge were evacuated after an underground explosion at a Cango Gas station near Eagle Street and Speedsville Road early Sunday morning.

An attendant turned on the power and there was an explosion. The gas pumps caught fire and a concrete slab shot up from underneath the station’s kiosk.

Officials say the attendant was not injured while trying to put out the flames with a fire extinguisher.

The Cambridge Fire department and the Ontario Fire Marshal are investigating for a possible cause and have evacuated several businesses next door as a precaution.