WSB-TV reports that the building on Crabapple Road houses Roswell Pediatric Center, a dentist office and CTS Systems.
Firefighters say a witness driving by called in the fire before the fire alarm went off around 3:30 a.m. Friday.
When firefighters arrived, they were forced to take a defensive position to battle the massive flames.
Few other details were immediately available early Friday.
http://accesswdun.com/article/2014/2/271774