Transportation officials said part of Route 72 eastbound was closed in Plainville.
The scene has since cleared.
The Department of Transportation said the closure was right near Route 372.
Traffic remained backed up as of 7 a.m. As of 7:30, traffic appeared to be moving again.
There's no word on injuries or a cause.
For real-time traffic updates, check the WFSB traffic map here.
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