Grocery Store / Super Center, Retail Sprinklers extinguish grocery store fire before firefighters arrive (Calgary, BC) March 22, 2014 viking210 Over 50 customers and employees had to leave a local grocery store on Friday after a fire broke out. Officials say the area where the fire originated had a sprinkler system which went off, along with a fire alarm. The sprinkler system extinguished the fire before crews even arrived on scene. There were no reports of injuries, and investigators are working to determine the cause of the fire.