Firefighters from St. Peter and Nicollet and surrounding communities were on the scene of a structure fire off Highway 169 just south of St. Peter this (WED) morning. The call came in shortly before 7am, and crews arriving on the scene reported heavy smoke coming out of the building. There was reportedly ammunition being stored in the structure as well, and it was apparently going off when crews were called out. There have been no reports of injuries at this time. Officials were re-directing traffic on Highway 169 while crews battled the fire.