 News Center 7's Letitia Perry, if you know anything, call Dayton Police. Back to Warren County where firefighters were called to an explosion at a Duke Energy substation. This happened around 7 Friday morning in Mainville. A spokesperson for Duke Energy told us equipment failure caused the fire. Nobody lost power as a result. Democracy 2024. President Biden was in Wisconsin Friday and reassured voters that he's not going anywhere. What's Joe going to do? Is he going to stay in the race?