The Massachusetts Department of Transportation said in a tweet that the wreck happened in the northbound lanes beneath the Roosevelt Circle near exit 24 around 2 p.m. on Thursday, Sept. 15. Only one lane of traffic remains open as emergency crews are still on the scene.
Photos from the crash from NBC Boston show two cars involved with an ambulance on site.
Calls to police were not immediately returned so it's unclear how many people were injured or the severity.
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