What's being described as an "unspecified issue" at a Newington substation caused hundreds of power outages in town Friday night.
Eversource officials said it happened at the Cherry Hill Street substation.
At one point, there were as many as 3,000 outages in the area. Now, that number has gone down to nothing - steadily decreasing as the night went on.
Power was restored within a few hours. Officials are investigating.
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For a full list of outages by town, click here.