Power is out for up to 5,000 residents in Belleville.
Belleville Police say a collision at North Front Street and Donald Street occurred around 4 p.m.
One vehicle involved struck a hydro box causing the outage north of the area.
Elexicon Energy is estimating power could be restored by 5:45 p.m.
Police are reminding motorists to treat intersections without working lights as a four way stop.
The collision resulted in minor injuries and the investigation is ongoing.