***Update: Most of the power was back on by Sunday evening***
Kitchener Wilmot Hydro is reporting that more than a thousand customers are facing a power outage in the Forest Heights area.
The lights went out at approximately 4:43 p.m.
They say the cause of the outage is still under investigation.
Crews are working to restore the power, and it is expected to come back on around 7:45 p.m.
All affected intersections should be treated as a four-way stop if the traffic lights are not working.