Other - Retail, Retail Jefferson City, MO – No one injured after commercial structure fire doused by sprinkler system December 15, 2017 viking210 Jefferson City firefighters responded Tuesday night to fire in a commercial building on West Truman Boulevard. The assistant fire chief says that by the time the firefighters arrived, all employees were accounted for, and there were no injuries. A small fire was still burning inside when firefighters got there but, fortunately, the building’s fire sprinkler system kicked in and was able to control the flames, which were completely extinguished within about 10 minutes. The cause of the fire is under investigation.