Power was out for thousands of Norwich Public Utilities customers on Friday morning after an equipment failure and it has been restored for most customers.
The outage was affecting traffic lights are out at major intersections.
Norwich Public Utilities said there was an equipment failure in the Dudley Street substation that disrupted power around 4:45 a.m. for about 5,000 customers, primarily in the West Main Street, Downtown, and Norwichtown sections of the city.
Norwich police asked drivers to use caution because of the impact it was having on the traffic lights and to follow all signs.
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Norwich Public Utilities said they had several employees responding to the incident.
As of 8 a.m., power was restored for all but around 100 customers and Norwich Public Utilities hoped to have service restored by 9 a.m. or so.
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