Route 286/Pinney Street is closed in the area of Windermere Avenue in Ellington following a crash, state police said.
According to police, one car struck a telephone poll causing power lines to topple on the road.
There were no injuries, authorities said.
The road has been shut down since before 3:30 a.m. Sunday, according to the state Department of Transportation, while crews work on fixing the power lines.
No additional information was immediately available.
Check back for updates.