TULSA, Ok. - 23 Tulsa firefighters responded to the Burger Street at 2101 South Harvard after someone who saw smoke rolling from the building called 911 at 3:01 a.m. today. Firefighters were able to quickly extinguish the fire that had flames coming from the roof. A fire investigator says the cause of the $45,000 fire was electrical in nature. No one was hurt because the business was closed.