Route 12 in Killingly was closed on Thursday afternoon after a person was hit by a car.
State police said the person was hit by a truck near the Plainfield town line after 1:45 p.m.
Route 12 was closed at the Plainfield town line however the road has since reopened.
Police said the person suffered "life-threatening injuries."
The cause of the crash is under investigation by state police.
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