No injuries were reported from a fire in the switchyard at Georgia Power's Plant McDonough, the power utility said in a statement early Monday morning. Between 11:20 p.m. and 11:30 p.m. Sunday, there were multiple reports online of fire and at least four loud explosions coming from the power plant in Cobb County near the Chattahoochee River. Cobb County Fire said in a statement on Monday that crews arrived to find heavy smoke and fire coming from a transformer around 11:30 p.m. Fire crews immediately went on the defensive to protect nearby structures that contained what the department described as hazardous materials. Power and gas were also turned off to the location. A total of 33 firefighters took on the blaze using 13 firefighting vehicles. Four HAZMAT vehicles were also dispatched and had 10 personnel of their own.