A tractor-trailer jackknifed on Interstate 91 northbound Wednesday morning, slowing down the morning commute.
The truck crashed into the left guardrail in the area of Exit 2 just before 10 a.m.
Both lanes of the highway are closed and traffic is passing through in the exit-only lane leading up to Exit 2.
State police told CBS 3 that oil and fuel were spilled and that there was a minor injury. One person was taken to the hospital on a stretcher.
Heavy-duty tow trucks are on scene and MassDOT highway sand trucks are on the way to handle the fuel spill.
Police do not yet know when the scene may be cleared.
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