State police a Robert Sweeney, 56, of Greenfield, died Saturday morning, following a single car crash on Interstate 91 southbound.
The incident happened shortly after 8 a.m.
When they arrived, troopers discovered a 1999 Chevrolet Tracker that had rolled over, trapping the driver in the vehicle.
Sweeney was the only person in the vehicle and was determined to be deceased at the scene.
Police closed the southbound lanes of the interstate while they investigated the crash.
The lanes were re-opened approximately four hours later.
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